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-rw-r--r--3rdparty/ezxml/CMakeLists.txt4
-rw-r--r--3rdparty/ezxml/ezxml.c1015
-rw-r--r--3rdparty/ezxml/ezxml.h167
-rw-r--r--3rdparty/stb_ds.h1895
4 files changed, 0 insertions, 3081 deletions
diff --git a/3rdparty/ezxml/CMakeLists.txt b/3rdparty/ezxml/CMakeLists.txt
deleted file mode 100644
index db024d9..0000000
--- a/3rdparty/ezxml/CMakeLists.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-cmake_minimum_required(VERSION 3.2)
-project(ezxml)
-
-add_library(ezxml STATIC ezxml.c)
diff --git a/3rdparty/ezxml/ezxml.c b/3rdparty/ezxml/ezxml.c
deleted file mode 100644
index 82b11fb..0000000
--- a/3rdparty/ezxml/ezxml.c
+++ /dev/null
@@ -1,1015 +0,0 @@
-/* ezxml.c
- *
- * Copyright 2004-2006 Aaron Voisine <aaron@voisine.org>
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
- * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
- * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdarg.h>
-#include <string.h>
-#include <ctype.h>
-#include <unistd.h>
-#include <sys/types.h>
-#ifndef EZXML_NOMMAP
-#include <sys/mman.h>
-#endif // EZXML_NOMMAP
-#include <sys/stat.h>
-#include "ezxml.h"
-
-#define EZXML_WS "\t\r\n " // whitespace
-#define EZXML_ERRL 128 // maximum error string length
-
-typedef struct ezxml_root *ezxml_root_t;
-struct ezxml_root { // additional data for the root tag
- struct ezxml xml; // is a super-struct built on top of ezxml struct
- ezxml_t cur; // current xml tree insertion point
- char *m; // original xml string
- size_t len; // length of allocated memory for mmap, -1 for malloc
- char *u; // UTF-8 conversion of string if original was UTF-16
- char *s; // start of work area
- char *e; // end of work area
- char **ent; // general entities (ampersand sequences)
- char ***attr; // default attributes
- char ***pi; // processing instructions
- short standalone; // non-zero if <?xml standalone="yes"?>
- char err[EZXML_ERRL]; // error string
-};
-
-char *EZXML_NIL[] = { NULL }; // empty, null terminated array of strings
-
-// returns the first child tag with the given name or NULL if not found
-ezxml_t ezxml_child(ezxml_t xml, const char *name)
-{
- xml = (xml) ? xml->child : NULL;
- while (xml && strcmp(name, xml->name)) xml = xml->sibling;
- return xml;
-}
-
-// returns the Nth tag with the same name in the same subsection or NULL if not
-// found
-ezxml_t ezxml_idx(ezxml_t xml, int idx)
-{
- for (; xml && idx; idx--) xml = xml->next;
- return xml;
-}
-
-// returns the value of the requested tag attribute or NULL if not found
-const char *ezxml_attr(ezxml_t xml, const char *attr)
-{
- int i = 0, j = 1;
- ezxml_root_t root = (ezxml_root_t)xml;
-
- if (! xml || ! xml->attr) return NULL;
- while (xml->attr[i] && strcmp(attr, xml->attr[i])) i += 2;
- if (xml->attr[i]) return xml->attr[i + 1]; // found attribute
-
- while (root->xml.parent) root = (ezxml_root_t)root->xml.parent; // root tag
- for (i = 0; root->attr[i] && strcmp(xml->name, root->attr[i][0]); i++);
- if (! root->attr[i]) return NULL; // no matching default attributes
- while (root->attr[i][j] && strcmp(attr, root->attr[i][j])) j += 3;
- return (root->attr[i][j]) ? root->attr[i][j + 1] : NULL; // found default
-}
-
-// same as ezxml_get but takes an already initialized va_list
-ezxml_t ezxml_vget(ezxml_t xml, va_list ap)
-{
- char *name = va_arg(ap, char *);
- int idx = -1;
-
- if (name && *name) {
- idx = va_arg(ap, int);
- xml = ezxml_child(xml, name);
- }
- return (idx < 0) ? xml : ezxml_vget(ezxml_idx(xml, idx), ap);
-}
-
-// Traverses the xml tree to retrieve a specific subtag. Takes a variable
-// length list of tag names and indexes. The argument list must be terminated
-// by either an index of -1 or an empty string tag name. Example:
-// title = ezxml_get(library, "shelf", 0, "book", 2, "title", -1);
-// This retrieves the title of the 3rd book on the 1st shelf of library.
-// Returns NULL if not found.
-ezxml_t ezxml_get(ezxml_t xml, ...)
-{
- va_list ap;
- ezxml_t r;
-
- va_start(ap, xml);
- r = ezxml_vget(xml, ap);
- va_end(ap);
- return r;
-}
-
-// returns a null terminated array of processing instructions for the given
-// target
-const char **ezxml_pi(ezxml_t xml, const char *target)
-{
- ezxml_root_t root = (ezxml_root_t)xml;
- int i = 0;
-
- if (! root) return (const char **)EZXML_NIL;
- while (root->xml.parent) root = (ezxml_root_t)root->xml.parent; // root tag
- while (root->pi[i] && strcmp(target, root->pi[i][0])) i++; // find target
- return (const char **)((root->pi[i]) ? root->pi[i] + 1 : EZXML_NIL);
-}
-
-// set an error string and return root
-ezxml_t ezxml_err(ezxml_root_t root, char *s, const char *err, ...)
-{
- va_list ap;
- int line = 1;
- char *t, fmt[EZXML_ERRL];
-
- for (t = root->s; t < s; t++) if (*t == '\n') line++;
- snprintf(fmt, EZXML_ERRL, "[error near line %d]: %s", line, err);
-
- va_start(ap, err);
- vsnprintf(root->err, EZXML_ERRL, fmt, ap);
- va_end(ap);
-
- return &root->xml;
-}
-
-// Recursively decodes entity and character references and normalizes new lines
-// ent is a null terminated array of alternating entity names and values. set t
-// to '&' for general entity decoding, '%' for parameter entity decoding, 'c'
-// for cdata sections, ' ' for attribute normalization, or '*' for non-cdata
-// attribute normalization. Returns s, or if the decoded string is longer than
-// s, returns a malloced string that must be freed.
-char *ezxml_decode(char *s, char **ent, char t)
-{
- char *e, *r = s, *m = s;
- long b, c, d, l;
-
- for (; *s; s++) { // normalize line endings
- while (*s == '\r') {
- *(s++) = '\n';
- if (*s == '\n') memmove(s, (s + 1), strlen(s));
- }
- }
-
- for (s = r; ; ) {
- while (*s && *s != '&' && (*s != '%' || t != '%') && !isspace(*s)) s++;
-
- if (! *s) break;
- else if (t != 'c' && ! strncmp(s, "&#", 2)) { // character reference
- if (s[2] == 'x') c = strtol(s + 3, &e, 16); // base 16
- else c = strtol(s + 2, &e, 10); // base 10
- if (! c || *e != ';') { s++; continue; } // not a character ref
-
- if (c < 0x80) *(s++) = c; // US-ASCII subset
- else { // multi-byte UTF-8 sequence
- for (b = 0, d = c; d; d /= 2) b++; // number of bits in c
- b = (b - 2) / 5; // number of bytes in payload
- *(s++) = (0xFF << (7 - b)) | (c >> (6 * b)); // head
- while (b) *(s++) = 0x80 | ((c >> (6 * --b)) & 0x3F); // payload
- }
-
- memmove(s, strchr(s, ';') + 1, strlen(strchr(s, ';')));
- }
- else if ((*s == '&' && (t == '&' || t == ' ' || t == '*')) ||
- (*s == '%' && t == '%')) { // entity reference
- for (b = 0; ent[b] && strncmp(s + 1, ent[b], strlen(ent[b]));
- b += 2); // find entity in entity list
-
- if (ent[b++]) { // found a match
- if ((c = strlen(ent[b])) - 1 > (e = strchr(s, ';')) - s) {
- l = (d = (s - r)) + c + strlen(e); // new length
- r = (r == m) ? strcpy(malloc(l), r) : realloc(r, l);
- e = strchr((s = r + d), ';'); // fix up pointers
- }
-
- memmove(s + c, e + 1, strlen(e)); // shift rest of string
- strncpy(s, ent[b], c); // copy in replacement text
- }
- else s++; // not a known entity
- }
- else if ((t == ' ' || t == '*') && isspace(*s)) *(s++) = ' ';
- else s++; // no decoding needed
- }
-
- if (t == '*') { // normalize spaces for non-cdata attributes
- for (s = r; *s; s++) {
- if ((l = strspn(s, " "))) memmove(s, s + l, strlen(s + l) + 1);
- while (*s && *s != ' ') s++;
- }
- if (--s >= r && *s == ' ') *s = '\0'; // trim any trailing space
- }
- return r;
-}
-
-// called when parser finds start of new tag
-void ezxml_open_tag(ezxml_root_t root, char *name, char **attr)
-{
- ezxml_t xml = root->cur;
-
- if (xml->name) xml = ezxml_add_child(xml, name, strlen(xml->txt));
- else xml->name = name; // first open tag
-
- xml->attr = attr;
- root->cur = xml; // update tag insertion point
-}
-
-// called when parser finds character content between open and closing tag
-void ezxml_char_content(ezxml_root_t root, char *s, size_t len, char t)
-{
- ezxml_t xml = root->cur;
- char *m = s;
- size_t l;
-
- if (! xml || ! xml->name || ! len) return; // sanity check
-
- s[len] = '\0'; // null terminate text (calling functions anticipate this)
- len = strlen(s = ezxml_decode(s, root->ent, t)) + 1;
-
- if (! *(xml->txt)) xml->txt = s; // initial character content
- else { // allocate our own memory and make a copy
- xml->txt = (xml->flags & EZXML_TXTM) // allocate some space
- ? realloc(xml->txt, (l = strlen(xml->txt)) + len)
- : strcpy(malloc((l = strlen(xml->txt)) + len), xml->txt);
- strcpy(xml->txt + l, s); // add new char content
- if (s != m) free(s); // free s if it was malloced by ezxml_decode()
- }
-
- if (xml->txt != m) ezxml_set_flag(xml, EZXML_TXTM);
-}
-
-// called when parser finds closing tag
-ezxml_t ezxml_close_tag(ezxml_root_t root, char *name, char *s)
-{
- if (! root->cur || ! root->cur->name || strcmp(name, root->cur->name))
- return ezxml_err(root, s, "unexpected closing tag </%s>", name);
-
- root->cur = root->cur->parent;
- return NULL;
-}
-
-// checks for circular entity references, returns non-zero if no circular
-// references are found, zero otherwise
-int ezxml_ent_ok(char *name, char *s, char **ent)
-{
- int i;
-
- for (; ; s++) {
- while (*s && *s != '&') s++; // find next entity reference
- if (! *s) return 1;
- if (! strncmp(s + 1, name, strlen(name))) return 0; // circular ref.
- for (i = 0; ent[i] && strncmp(ent[i], s + 1, strlen(ent[i])); i += 2);
- if (ent[i] && ! ezxml_ent_ok(name, ent[i + 1], ent)) return 0;
- }
-}
-
-// called when the parser finds a processing instruction
-void ezxml_proc_inst(ezxml_root_t root, char *s, size_t len)
-{
- int i = 0, j = 1;
- char *target = s;
-
- s[len] = '\0'; // null terminate instruction
- if (*(s += strcspn(s, EZXML_WS))) {
- *s = '\0'; // null terminate target
- s += strspn(s + 1, EZXML_WS) + 1; // skip whitespace after target
- }
-
- if (! strcmp(target, "xml")) { // <?xml ... ?>
- if ((s = strstr(s, "standalone")) && ! strncmp(s + strspn(s + 10,
- EZXML_WS "='\"") + 10, "yes", 3)) root->standalone = 1;
- return;
- }
-
- if (! root->pi[0]) *(root->pi = malloc(sizeof(char **))) = NULL; //first pi
-
- while (root->pi[i] && strcmp(target, root->pi[i][0])) i++; // find target
- if (! root->pi[i]) { // new target
- root->pi = realloc(root->pi, sizeof(char **) * (i + 2));
- root->pi[i] = malloc(sizeof(char *) * 3);
- root->pi[i][0] = target;
- root->pi[i][1] = (char *)(root->pi[i + 1] = NULL); // terminate pi list
- root->pi[i][2] = strdup(""); // empty document position list
- }
-
- while (root->pi[i][j]) j++; // find end of instruction list for this target
- root->pi[i] = realloc(root->pi[i], sizeof(char *) * (j + 3));
- root->pi[i][j + 2] = realloc(root->pi[i][j + 1], j + 1);
- strcpy(root->pi[i][j + 2] + j - 1, (root->xml.name) ? ">" : "<");
- root->pi[i][j + 1] = NULL; // null terminate pi list for this target
- root->pi[i][j] = s; // set instruction
-}
-
-// called when the parser finds an internal doctype subset
-short ezxml_internal_dtd(ezxml_root_t root, char *s, size_t len)
-{
- char q, *c, *t, *n = NULL, *v, **ent, **pe;
- int i, j;
-
- pe = memcpy(malloc(sizeof(EZXML_NIL)), EZXML_NIL, sizeof(EZXML_NIL));
-
- for (s[len] = '\0'; s; ) {
- while (*s && *s != '<' && *s != '%') s++; // find next declaration
-
- if (! *s) break;
- else if (! strncmp(s, "<!ENTITY", 8)) { // parse entity definitions
- c = s += strspn(s + 8, EZXML_WS) + 8; // skip white space separator
- n = s + strspn(s, EZXML_WS "%"); // find name
- *(s = n + strcspn(n, EZXML_WS)) = ';'; // append ; to name
-
- v = s + strspn(s + 1, EZXML_WS) + 1; // find value
- if ((q = *(v++)) != '"' && q != '\'') { // skip externals
- s = strchr(s, '>');
- continue;
- }
-
- for (i = 0, ent = (*c == '%') ? pe : root->ent; ent[i]; i++);
- ent = realloc(ent, (i + 3) * sizeof(char *)); // space for next ent
- if (*c == '%') pe = ent;
- else root->ent = ent;
-
- *(++s) = '\0'; // null terminate name
- if ((s = strchr(v, q))) *(s++) = '\0'; // null terminate value
- ent[i + 1] = ezxml_decode(v, pe, '%'); // set value
- ent[i + 2] = NULL; // null terminate entity list
- if (! ezxml_ent_ok(n, ent[i + 1], ent)) { // circular reference
- if (ent[i + 1] != v) free(ent[i + 1]);
- ezxml_err(root, v, "circular entity declaration &%s", n);
- break;
- }
- else ent[i] = n; // set entity name
- }
- else if (! strncmp(s, "<!ATTLIST", 9)) { // parse default attributes
- t = s + strspn(s + 9, EZXML_WS) + 9; // skip whitespace separator
- if (! *t) { ezxml_err(root, t, "unclosed <!ATTLIST"); break; }
- if (*(s = t + strcspn(t, EZXML_WS ">")) == '>') continue;
- else *s = '\0'; // null terminate tag name
- for (i = 0; root->attr[i] && strcmp(n, root->attr[i][0]); i++);
-
- while (*(n = ++s + strspn(s, EZXML_WS)) && *n != '>') {
- if (*(s = n + strcspn(n, EZXML_WS))) *s = '\0'; // attr name
- else { ezxml_err(root, t, "malformed <!ATTLIST"); break; }
-
- s += strspn(s + 1, EZXML_WS) + 1; // find next token
- c = (strncmp(s, "CDATA", 5)) ? "*" : " "; // is it cdata?
- if (! strncmp(s, "NOTATION", 8))
- s += strspn(s + 8, EZXML_WS) + 8;
- s = (*s == '(') ? strchr(s, ')') : s + strcspn(s, EZXML_WS);
- if (! s) { ezxml_err(root, t, "malformed <!ATTLIST"); break; }
-
- s += strspn(s, EZXML_WS ")"); // skip white space separator
- if (! strncmp(s, "#FIXED", 6))
- s += strspn(s + 6, EZXML_WS) + 6;
- if (*s == '#') { // no default value
- s += strcspn(s, EZXML_WS ">") - 1;
- if (*c == ' ') continue; // cdata is default, nothing to do
- v = NULL;
- }
- else if ((*s == '"' || *s == '\'') && // default value
- (s = strchr(v = s + 1, *s))) *s = '\0';
- else { ezxml_err(root, t, "malformed <!ATTLIST"); break; }
-
- if (! root->attr[i]) { // new tag name
- root->attr = (! i) ? malloc(2 * sizeof(char **))
- : realloc(root->attr,
- (i + 2) * sizeof(char **));
- root->attr[i] = malloc(2 * sizeof(char *));
- root->attr[i][0] = t; // set tag name
- root->attr[i][1] = (char *)(root->attr[i + 1] = NULL);
- }
-
- for (j = 1; root->attr[i][j]; j += 3); // find end of list
- root->attr[i] = realloc(root->attr[i],
- (j + 4) * sizeof(char *));
-
- root->attr[i][j + 3] = NULL; // null terminate list
- root->attr[i][j + 2] = c; // is it cdata?
- root->attr[i][j + 1] = (v) ? ezxml_decode(v, root->ent, *c)
- : NULL;
- root->attr[i][j] = n; // attribute name
- }
- }
- else if (! strncmp(s, "<!--", 4)) s = strstr(s + 4, "-->"); // comments
- else if (! strncmp(s, "<?", 2)) { // processing instructions
- if ((s = strstr(c = s + 2, "?>")))
- ezxml_proc_inst(root, c, s++ - c);
- }
- else if (*s == '<') s = strchr(s, '>'); // skip other declarations
- else if (*(s++) == '%' && ! root->standalone) break;
- }
-
- free(pe);
- return ! *root->err;
-}
-
-// Converts a UTF-16 string to UTF-8. Returns a new string that must be freed
-// or NULL if no conversion was needed.
-char *ezxml_str2utf8(char **s, size_t *len)
-{
- char *u;
- size_t l = 0, sl, max = *len;
- long c, d;
- int b, be = (**s == '\xFE') ? 1 : (**s == '\xFF') ? 0 : -1;
-
- if (be == -1) return NULL; // not UTF-16
-
- u = malloc(max);
- for (sl = 2; sl < *len - 1; sl += 2) {
- c = (be) ? (((*s)[sl] & 0xFF) << 8) | ((*s)[sl + 1] & 0xFF) //UTF-16BE
- : (((*s)[sl + 1] & 0xFF) << 8) | ((*s)[sl] & 0xFF); //UTF-16LE
- if (c >= 0xD800 && c <= 0xDFFF && (sl += 2) < *len - 1) { // high-half
- d = (be) ? (((*s)[sl] & 0xFF) << 8) | ((*s)[sl + 1] & 0xFF)
- : (((*s)[sl + 1] & 0xFF) << 8) | ((*s)[sl] & 0xFF);
- c = (((c & 0x3FF) << 10) | (d & 0x3FF)) + 0x10000;
- }
-
- while (l + 6 > max) u = realloc(u, max += EZXML_BUFSIZE);
- if (c < 0x80) u[l++] = c; // US-ASCII subset
- else { // multi-byte UTF-8 sequence
- for (b = 0, d = c; d; d /= 2) b++; // bits in c
- b = (b - 2) / 5; // bytes in payload
- u[l++] = (0xFF << (7 - b)) | (c >> (6 * b)); // head
- while (b) u[l++] = 0x80 | ((c >> (6 * --b)) & 0x3F); // payload
- }
- }
- return *s = realloc(u, *len = l);
-}
-
-// frees a tag attribute list
-void ezxml_free_attr(char **attr) {
- int i = 0;
- char *m;
-
- if (! attr || attr == EZXML_NIL) return; // nothing to free
- while (attr[i]) i += 2; // find end of attribute list
- m = attr[i + 1]; // list of which names and values are malloced
- for (i = 0; m[i]; i++) {
- if (m[i] & EZXML_NAMEM) free(attr[i * 2]);
- if (m[i] & EZXML_TXTM) free(attr[(i * 2) + 1]);
- }
- free(m);
- free(attr);
-}
-
-// parse the given xml string and return an ezxml structure
-ezxml_t ezxml_parse_str(char *s, size_t len)
-{
- ezxml_root_t root = (ezxml_root_t)ezxml_new(NULL);
- char q, e, *d, **attr, **a = NULL; // initialize a to avoid compile warning
- int l, i, j;
-
- root->m = s;
- if (! len) return ezxml_err(root, NULL, "root tag missing");
- root->u = ezxml_str2utf8(&s, &len); // convert utf-16 to utf-8
- root->e = (root->s = s) + len; // record start and end of work area
-
- e = s[len - 1]; // save end char
- s[len - 1] = '\0'; // turn end char into null terminator
-
- while (*s && *s != '<') s++; // find first tag
- if (! *s) return ezxml_err(root, s, "root tag missing");
-
- for (; ; ) {
- attr = (char **)EZXML_NIL;
- d = ++s;
-
- if (isalpha(*s) || *s == '_' || *s == ':' || *s < '\0') { // new tag
- if (! root->cur)
- return ezxml_err(root, d, "markup outside of root element");
-
- s += strcspn(s, EZXML_WS "/>");
- while (isspace(*s)) *(s++) = '\0'; // null terminate tag name
-
- if (*s && *s != '/' && *s != '>') // find tag in default attr list
- for (i = 0; (a = root->attr[i]) && strcmp(a[0], d); i++);
-
- for (l = 0; *s && *s != '/' && *s != '>'; l += 2) { // new attrib
- attr = (l) ? realloc(attr, (l + 4) * sizeof(char *))
- : malloc(4 * sizeof(char *)); // allocate space
- attr[l + 3] = (l) ? realloc(attr[l + 1], (l / 2) + 2)
- : malloc(2); // mem for list of maloced vals
- strcpy(attr[l + 3] + (l / 2), " "); // value is not malloced
- attr[l + 2] = NULL; // null terminate list
- attr[l + 1] = ""; // temporary attribute value
- attr[l] = s; // set attribute name
-
- s += strcspn(s, EZXML_WS "=/>");
- if (*s == '=' || isspace(*s)) {
- *(s++) = '\0'; // null terminate tag attribute name
- q = *(s += strspn(s, EZXML_WS "="));
- if (q == '"' || q == '\'') { // attribute value
- attr[l + 1] = ++s;
- while (*s && *s != q) s++;
- if (*s) *(s++) = '\0'; // null terminate attribute val
- else {
- ezxml_free_attr(attr);
- return ezxml_err(root, d, "missing %c", q);
- }
-
- for (j = 1; a && a[j] && strcmp(a[j], attr[l]); j +=3);
- attr[l + 1] = ezxml_decode(attr[l + 1], root->ent, (a
- && a[j]) ? *a[j + 2] : ' ');
- if (attr[l + 1] < d || attr[l + 1] > s)
- attr[l + 3][l / 2] = EZXML_TXTM; // value malloced
- }
- }
- while (isspace(*s)) s++;
- }
-
- if (*s == '/') { // self closing tag
- *(s++) = '\0';
- if ((*s && *s != '>') || (! *s && e != '>')) {
- if (l) ezxml_free_attr(attr);
- return ezxml_err(root, d, "missing >");
- }
- ezxml_open_tag(root, d, attr);
- ezxml_close_tag(root, d, s);
- }
- else if ((q = *s) == '>' || (! *s && e == '>')) { // open tag
- *s = '\0'; // temporarily null terminate tag name
- ezxml_open_tag(root, d, attr);
- *s = q;
- }
- else {
- if (l) ezxml_free_attr(attr);
- return ezxml_err(root, d, "missing >");
- }
- }
- else if (*s == '/') { // close tag
- s += strcspn(d = s + 1, EZXML_WS ">") + 1;
- if (! (q = *s) && e != '>') return ezxml_err(root, d, "missing >");
- *s = '\0'; // temporarily null terminate tag name
- if (ezxml_close_tag(root, d, s)) return &root->xml;
- if (isspace(*s = q)) s += strspn(s, EZXML_WS);
- }
- else if (! strncmp(s, "!--", 3)) { // xml comment
- if (! (s = strstr(s + 3, "--")) || (*(s += 2) != '>' && *s) ||
- (! *s && e != '>')) return ezxml_err(root, d, "unclosed <!--");
- }
- else if (! strncmp(s, "![CDATA[", 8)) { // cdata
- if ((s = strstr(s, "]]>")))
- ezxml_char_content(root, d + 8, (s += 2) - d - 10, 'c');
- else return ezxml_err(root, d, "unclosed <![CDATA[");
- }
- else if (! strncmp(s, "!DOCTYPE", 8)) { // dtd
- for (l = 0; *s && ((! l && *s != '>') || (l && (*s != ']' ||
- *(s + strspn(s + 1, EZXML_WS) + 1) != '>')));
- l = (*s == '[') ? 1 : l) s += strcspn(s + 1, "[]>") + 1;
- if (! *s && e != '>')
- return ezxml_err(root, d, "unclosed <!DOCTYPE");
- d = (l) ? strchr(d, '[') + 1 : d;
- if (l && ! ezxml_internal_dtd(root, d, s++ - d)) return &root->xml;
- }
- else if (*s == '?') { // <?...?> processing instructions
- do { s = strchr(s, '?'); } while (s && *(++s) && *s != '>');
- if (! s || (! *s && e != '>'))
- return ezxml_err(root, d, "unclosed <?");
- else ezxml_proc_inst(root, d + 1, s - d - 2);
- }
- else return ezxml_err(root, d, "unexpected <");
-
- if (! s || ! *s) break;
- *s = '\0';
- d = ++s;
- if (*s && *s != '<') { // tag character content
- while (*s && *s != '<') s++;
- if (*s) ezxml_char_content(root, d, s - d, '&');
- else break;
- }
- else if (! *s) break;
- }
-
- if (! root->cur) return &root->xml;
- else if (! root->cur->name) return ezxml_err(root, d, "root tag missing");
- else return ezxml_err(root, d, "unclosed tag <%s>", root->cur->name);
-}
-
-// Wrapper for ezxml_parse_str() that accepts a file stream. Reads the entire
-// stream into memory and then parses it. For xml files, use ezxml_parse_file()
-// or ezxml_parse_fd()
-ezxml_t ezxml_parse_fp(FILE *fp)
-{
- ezxml_root_t root;
- size_t l, len = 0;
- char *s;
-
- if (! (s = malloc(EZXML_BUFSIZE))) return NULL;
- do {
- len += (l = fread((s + len), 1, EZXML_BUFSIZE, fp));
- if (l == EZXML_BUFSIZE) s = realloc(s, len + EZXML_BUFSIZE);
- } while (s && l == EZXML_BUFSIZE);
-
- if (! s) return NULL;
- root = (ezxml_root_t)ezxml_parse_str(s, len);
- root->len = -1; // so we know to free s in ezxml_free()
- return &root->xml;
-}
-
-// A wrapper for ezxml_parse_str() that accepts a file descriptor. First
-// attempts to mem map the file. Failing that, reads the file into memory.
-// Returns NULL on failure.
-ezxml_t ezxml_parse_fd(int fd)
-{
- ezxml_root_t root;
- struct stat st;
- size_t l;
- void *m;
-
- if (fd < 0) return NULL;
- fstat(fd, &st);
-
-#ifndef EZXML_NOMMAP
- l = (st.st_size + sysconf(_SC_PAGESIZE) - 1) & ~(sysconf(_SC_PAGESIZE) -1);
- if ((m = mmap(NULL, l, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0)) !=
- MAP_FAILED) {
- madvise(m, l, MADV_SEQUENTIAL); // optimize for sequential access
- root = (ezxml_root_t)ezxml_parse_str(m, st.st_size);
- madvise(m, root->len = l, MADV_NORMAL); // put it back to normal
- }
- else { // mmap failed, read file into memory
-#endif // EZXML_NOMMAP
- l = read(fd, m = malloc(st.st_size), st.st_size);
- root = (ezxml_root_t)ezxml_parse_str(m, l);
- root->len = -1; // so we know to free s in ezxml_free()
-#ifndef EZXML_NOMMAP
- }
-#endif // EZXML_NOMMAP
- return &root->xml;
-}
-
-// a wrapper for ezxml_parse_fd that accepts a file name
-ezxml_t ezxml_parse_file(const char *file)
-{
- int fd = open(file, O_RDONLY, 0);
- ezxml_t xml = ezxml_parse_fd(fd);
-
- if (fd >= 0) close(fd);
- return xml;
-}
-
-// Encodes ampersand sequences appending the results to *dst, reallocating *dst
-// if length excedes max. a is non-zero for attribute encoding. Returns *dst
-char *ezxml_ampencode(const char *s, size_t len, char **dst, size_t *dlen,
- size_t *max, short a)
-{
- const char *e;
-
- for (e = s + len; s != e; s++) {
- while (*dlen + 10 > *max) *dst = realloc(*dst, *max += EZXML_BUFSIZE);
-
- switch (*s) {
- case '\0': return *dst;
- case '&': *dlen += sprintf(*dst + *dlen, "&amp;"); break;
- case '<': *dlen += sprintf(*dst + *dlen, "&lt;"); break;
- case '>': *dlen += sprintf(*dst + *dlen, "&gt;"); break;
- case '"': *dlen += sprintf(*dst + *dlen, (a) ? "&quot;" : "\""); break;
- case '\n': *dlen += sprintf(*dst + *dlen, (a) ? "&#xA;" : "\n"); break;
- case '\t': *dlen += sprintf(*dst + *dlen, (a) ? "&#x9;" : "\t"); break;
- case '\r': *dlen += sprintf(*dst + *dlen, "&#xD;"); break;
- default: (*dst)[(*dlen)++] = *s;
- }
- }
- return *dst;
-}
-
-// Recursively converts each tag to xml appending it to *s. Reallocates *s if
-// its length excedes max. start is the location of the previous tag in the
-// parent tag's character content. Returns *s.
-char *ezxml_toxml_r(ezxml_t xml, char **s, size_t *len, size_t *max,
- size_t start, char ***attr)
-{
- int i, j;
- char *txt = (xml->parent) ? xml->parent->txt : "";
- size_t off = 0;
-
- // parent character content up to this tag
- *s = ezxml_ampencode(txt + start, xml->off - start, s, len, max, 0);
-
- while (*len + strlen(xml->name) + 4 > *max) // reallocate s
- *s = realloc(*s, *max += EZXML_BUFSIZE);
-
- *len += sprintf(*s + *len, "<%s", xml->name); // open tag
- for (i = 0; xml->attr[i]; i += 2) { // tag attributes
- if (ezxml_attr(xml, xml->attr[i]) != xml->attr[i + 1]) continue;
- while (*len + strlen(xml->attr[i]) + 7 > *max) // reallocate s
- *s = realloc(*s, *max += EZXML_BUFSIZE);
-
- *len += sprintf(*s + *len, " %s=\"", xml->attr[i]);
- ezxml_ampencode(xml->attr[i + 1], -1, s, len, max, 1);
- *len += sprintf(*s + *len, "\"");
- }
-
- for (i = 0; attr[i] && strcmp(attr[i][0], xml->name); i++);
- for (j = 1; attr[i] && attr[i][j]; j += 3) { // default attributes
- if (! attr[i][j + 1] || ezxml_attr(xml, attr[i][j]) != attr[i][j + 1])
- continue; // skip duplicates and non-values
- while (*len + strlen(attr[i][j]) + 7 > *max) // reallocate s
- *s = realloc(*s, *max += EZXML_BUFSIZE);
-
- *len += sprintf(*s + *len, " %s=\"", attr[i][j]);
- ezxml_ampencode(attr[i][j + 1], -1, s, len, max, 1);
- *len += sprintf(*s + *len, "\"");
- }
- *len += sprintf(*s + *len, ">");
-
- *s = (xml->child) ? ezxml_toxml_r(xml->child, s, len, max, 0, attr) //child
- : ezxml_ampencode(xml->txt, -1, s, len, max, 0); //data
-
- while (*len + strlen(xml->name) + 4 > *max) // reallocate s
- *s = realloc(*s, *max += EZXML_BUFSIZE);
-
- *len += sprintf(*s + *len, "</%s>", xml->name); // close tag
-
- while (txt[off] && off < xml->off) off++; // make sure off is within bounds
- return (xml->ordered) ? ezxml_toxml_r(xml->ordered, s, len, max, off, attr)
- : ezxml_ampencode(txt + off, -1, s, len, max, 0);
-}
-
-// Converts an ezxml structure back to xml. Returns a string of xml data that
-// must be freed.
-char *ezxml_toxml(ezxml_t xml)
-{
- ezxml_t p = (xml) ? xml->parent : NULL, o = (xml) ? xml->ordered : NULL;
- ezxml_root_t root = (ezxml_root_t)xml;
- size_t len = 0, max = EZXML_BUFSIZE;
- char *s = strcpy(malloc(max), ""), *t, *n;
- int i, j, k;
-
- if (! xml || ! xml->name) return realloc(s, len + 1);
- while (root->xml.parent) root = (ezxml_root_t)root->xml.parent; // root tag
-
- for (i = 0; ! p && root->pi[i]; i++) { // pre-root processing instructions
- for (k = 2; root->pi[i][k - 1]; k++);
- for (j = 1; (n = root->pi[i][j]); j++) {
- if (root->pi[i][k][j - 1] == '>') continue; // not pre-root
- while (len + strlen(t = root->pi[i][0]) + strlen(n) + 7 > max)
- s = realloc(s, max += EZXML_BUFSIZE);
- len += sprintf(s + len, "<?%s%s%s?>\n", t, *n ? " " : "", n);
- }
- }
-
- xml->parent = xml->ordered = NULL;
- s = ezxml_toxml_r(xml, &s, &len, &max, 0, root->attr);
- xml->parent = p;
- xml->ordered = o;
-
- for (i = 0; ! p && root->pi[i]; i++) { // post-root processing instructions
- for (k = 2; root->pi[i][k - 1]; k++);
- for (j = 1; (n = root->pi[i][j]); j++) {
- if (root->pi[i][k][j - 1] == '<') continue; // not post-root
- while (len + strlen(t = root->pi[i][0]) + strlen(n) + 7 > max)
- s = realloc(s, max += EZXML_BUFSIZE);
- len += sprintf(s + len, "\n<?%s%s%s?>", t, *n ? " " : "", n);
- }
- }
- return realloc(s, len + 1);
-}
-
-// free the memory allocated for the ezxml structure
-void ezxml_free(ezxml_t xml)
-{
- ezxml_root_t root = (ezxml_root_t)xml;
- int i, j;
- char **a, *s;
-
- if (! xml) return;
- ezxml_free(xml->child);
- ezxml_free(xml->ordered);
-
- if (! xml->parent) { // free root tag allocations
- for (i = 10; root->ent[i]; i += 2) // 0 - 9 are default entites (<>&"')
- if ((s = root->ent[i + 1]) < root->s || s > root->e) free(s);
- free(root->ent); // free list of general entities
-
- for (i = 0; (a = root->attr[i]); i++) {
- for (j = 1; a[j++]; j += 2) // free malloced attribute values
- if (a[j] && (a[j] < root->s || a[j] > root->e)) free(a[j]);
- free(a);
- }
- if (root->attr[0]) free(root->attr); // free default attribute list
-
- for (i = 0; root->pi[i]; i++) {
- for (j = 1; root->pi[i][j]; j++);
- free(root->pi[i][j + 1]);
- free(root->pi[i]);
- }
- if (root->pi[0]) free(root->pi); // free processing instructions
-
- if (root->len == -1) free(root->m); // malloced xml data
-#ifndef EZXML_NOMMAP
- else if (root->len) munmap(root->m, root->len); // mem mapped xml data
-#endif // EZXML_NOMMAP
- if (root->u) free(root->u); // utf8 conversion
- }
-
- ezxml_free_attr(xml->attr); // tag attributes
- if ((xml->flags & EZXML_TXTM)) free(xml->txt); // character content
- if ((xml->flags & EZXML_NAMEM)) free(xml->name); // tag name
- free(xml);
-}
-
-// return parser error message or empty string if none
-const char *ezxml_error(ezxml_t xml)
-{
- while (xml && xml->parent) xml = xml->parent; // find root tag
- return (xml) ? ((ezxml_root_t)xml)->err : "";
-}
-
-// returns a new empty ezxml structure with the given root tag name
-ezxml_t ezxml_new(const char *name)
-{
- static char *ent[] = { "lt;", "&#60;", "gt;", "&#62;", "quot;", "&#34;",
- "apos;", "&#39;", "amp;", "&#38;", NULL };
- ezxml_root_t root = (ezxml_root_t)memset(malloc(sizeof(struct ezxml_root)),
- '\0', sizeof(struct ezxml_root));
- root->xml.name = (char *)name;
- root->cur = &root->xml;
- strcpy(root->err, root->xml.txt = "");
- root->ent = memcpy(malloc(sizeof(ent)), ent, sizeof(ent));
- root->attr = root->pi = (char ***)(root->xml.attr = EZXML_NIL);
- return &root->xml;
-}
-
-// inserts an existing tag into an ezxml structure
-ezxml_t ezxml_insert(ezxml_t xml, ezxml_t dest, size_t off)
-{
- ezxml_t cur, prev, head;
-
- xml->next = xml->sibling = xml->ordered = NULL;
- xml->off = off;
- xml->parent = dest;
-
- if ((head = dest->child)) { // already have sub tags
- if (head->off <= off) { // not first subtag
- for (cur = head; cur->ordered && cur->ordered->off <= off;
- cur = cur->ordered);
- xml->ordered = cur->ordered;
- cur->ordered = xml;
- }
- else { // first subtag
- xml->ordered = head;
- dest->child = xml;
- }
-
- for (cur = head, prev = NULL; cur && strcmp(cur->name, xml->name);
- prev = cur, cur = cur->sibling); // find tag type
- if (cur && cur->off <= off) { // not first of type
- while (cur->next && cur->next->off <= off) cur = cur->next;
- xml->next = cur->next;
- cur->next = xml;
- }
- else { // first tag of this type
- if (prev && cur) prev->sibling = cur->sibling; // remove old first
- xml->next = cur; // old first tag is now next
- for (cur = head, prev = NULL; cur && cur->off <= off;
- prev = cur, cur = cur->sibling); // new sibling insert point
- xml->sibling = cur;
- if (prev) prev->sibling = xml;
- }
- }
- else dest->child = xml; // only sub tag
-
- return xml;
-}
-
-// Adds a child tag. off is the offset of the child tag relative to the start
-// of the parent tag's character content. Returns the child tag.
-ezxml_t ezxml_add_child(ezxml_t xml, const char *name, size_t off)
-{
- ezxml_t child;
-
- if (! xml) return NULL;
- child = (ezxml_t)memset(malloc(sizeof(struct ezxml)), '\0',
- sizeof(struct ezxml));
- child->name = (char *)name;
- child->attr = EZXML_NIL;
- child->txt = "";
-
- return ezxml_insert(child, xml, off);
-}
-
-// sets the character content for the given tag and returns the tag
-ezxml_t ezxml_set_txt(ezxml_t xml, const char *txt)
-{
- if (! xml) return NULL;
- if (xml->flags & EZXML_TXTM) free(xml->txt); // existing txt was malloced
- xml->flags &= ~EZXML_TXTM;
- xml->txt = (char *)txt;
- return xml;
-}
-
-// Sets the given tag attribute or adds a new attribute if not found. A value
-// of NULL will remove the specified attribute. Returns the tag given.
-ezxml_t ezxml_set_attr(ezxml_t xml, const char *name, const char *value)
-{
- int l = 0, c;
-
- if (! xml) return NULL;
- while (xml->attr[l] && strcmp(xml->attr[l], name)) l += 2;
- if (! xml->attr[l]) { // not found, add as new attribute
- if (! value) return xml; // nothing to do
- if (xml->attr == EZXML_NIL) { // first attribute
- xml->attr = malloc(4 * sizeof(char *));
- xml->attr[1] = strdup(""); // empty list of malloced names/vals
- }
- else xml->attr = realloc(xml->attr, (l + 4) * sizeof(char *));
-
- xml->attr[l] = (char *)name; // set attribute name
- xml->attr[l + 2] = NULL; // null terminate attribute list
- xml->attr[l + 3] = realloc(xml->attr[l + 1],
- (c = strlen(xml->attr[l + 1])) + 2);
- strcpy(xml->attr[l + 3] + c, " "); // set name/value as not malloced
- if (xml->flags & EZXML_DUP) xml->attr[l + 3][c] = EZXML_NAMEM;
- }
- else if (xml->flags & EZXML_DUP) free((char *)name); // name was strduped
-
- for (c = l; xml->attr[c]; c += 2); // find end of attribute list
- if (xml->attr[c + 1][l / 2] & EZXML_TXTM) free(xml->attr[l + 1]); //old val
- if (xml->flags & EZXML_DUP) xml->attr[c + 1][l / 2] |= EZXML_TXTM;
- else xml->attr[c + 1][l / 2] &= ~EZXML_TXTM;
-
- if (value) xml->attr[l + 1] = (char *)value; // set attribute value
- else { // remove attribute
- if (xml->attr[c + 1][l / 2] & EZXML_NAMEM) free(xml->attr[l]);
- memmove(xml->attr + l, xml->attr + l + 2, (c - l + 2) * sizeof(char*));
- xml->attr = realloc(xml->attr, (c + 2) * sizeof(char *));
- memmove(xml->attr[c + 1] + (l / 2), xml->attr[c + 1] + (l / 2) + 1,
- (c / 2) - (l / 2)); // fix list of which name/vals are malloced
- }
- xml->flags &= ~EZXML_DUP; // clear strdup() flag
- return xml;
-}
-
-// sets a flag for the given tag and returns the tag
-ezxml_t ezxml_set_flag(ezxml_t xml, short flag)
-{
- if (xml) xml->flags |= flag;
- return xml;
-}
-
-// removes a tag along with its subtags without freeing its memory
-ezxml_t ezxml_cut(ezxml_t xml)
-{
- ezxml_t cur;
-
- if (! xml) return NULL; // nothing to do
- if (xml->next) xml->next->sibling = xml->sibling; // patch sibling list
-
- if (xml->parent) { // not root tag
- cur = xml->parent->child; // find head of subtag list
- if (cur == xml) xml->parent->child = xml->ordered; // first subtag
- else { // not first subtag
- while (cur->ordered != xml) cur = cur->ordered;
- cur->ordered = cur->ordered->ordered; // patch ordered list
-
- cur = xml->parent->child; // go back to head of subtag list
- if (strcmp(cur->name, xml->name)) { // not in first sibling list
- while (strcmp(cur->sibling->name, xml->name))
- cur = cur->sibling;
- if (cur->sibling == xml) { // first of a sibling list
- cur->sibling = (xml->next) ? xml->next
- : cur->sibling->sibling;
- }
- else cur = cur->sibling; // not first of a sibling list
- }
-
- while (cur->next && cur->next != xml) cur = cur->next;
- if (cur->next) cur->next = cur->next->next; // patch next list
- }
- }
- xml->ordered = xml->sibling = xml->next = NULL;
- return xml;
-}
-
-#ifdef EZXML_TEST // test harness
-int main(int argc, char **argv)
-{
- ezxml_t xml;
- char *s;
- int i;
-
- if (argc != 2) return fprintf(stderr, "usage: %s xmlfile\n", argv[0]);
-
- xml = ezxml_parse_file(argv[1]);
- printf("%s\n", (s = ezxml_toxml(xml)));
- free(s);
- i = fprintf(stderr, "%s", ezxml_error(xml));
- ezxml_free(xml);
- return (i) ? 1 : 0;
-}
-#endif // EZXML_TEST
diff --git a/3rdparty/ezxml/ezxml.h b/3rdparty/ezxml/ezxml.h
deleted file mode 100644
index 3e02078..0000000
--- a/3rdparty/ezxml/ezxml.h
+++ /dev/null
@@ -1,167 +0,0 @@
-/* ezxml.h
- *
- * Copyright 2004-2006 Aaron Voisine <aaron@voisine.org>
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
- * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
- * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#ifndef _EZXML_H
-#define _EZXML_H
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdarg.h>
-#include <fcntl.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define EZXML_BUFSIZE 1024 // size of internal memory buffers
-#define EZXML_NAMEM 0x80 // name is malloced
-#define EZXML_TXTM 0x40 // txt is malloced
-#define EZXML_DUP 0x20 // attribute name and value are strduped
-
-typedef struct ezxml *ezxml_t;
-struct ezxml {
- char *name; // tag name
- char **attr; // tag attributes { name, value, name, value, ... NULL }
- char *txt; // tag character content, empty string if none
- size_t off; // tag offset from start of parent tag character content
- ezxml_t next; // next tag with same name in this section at this depth
- ezxml_t sibling; // next tag with different name in same section and depth
- ezxml_t ordered; // next tag, same section and depth, in original order
- ezxml_t child; // head of sub tag list, NULL if none
- ezxml_t parent; // parent tag, NULL if current tag is root tag
- short flags; // additional information
-};
-
-// Given a string of xml data and its length, parses it and creates an ezxml
-// structure. For efficiency, modifies the data by adding null terminators
-// and decoding ampersand sequences. If you don't want this, copy the data and
-// pass in the copy. Returns NULL on failure.
-ezxml_t ezxml_parse_str(char *s, size_t len);
-
-// A wrapper for ezxml_parse_str() that accepts a file descriptor. First
-// attempts to mem map the file. Failing that, reads the file into memory.
-// Returns NULL on failure.
-ezxml_t ezxml_parse_fd(int fd);
-
-// a wrapper for ezxml_parse_fd() that accepts a file name
-ezxml_t ezxml_parse_file(const char *file);
-
-// Wrapper for ezxml_parse_str() that accepts a file stream. Reads the entire
-// stream into memory and then parses it. For xml files, use ezxml_parse_file()
-// or ezxml_parse_fd()
-ezxml_t ezxml_parse_fp(FILE *fp);
-
-// returns the first child tag (one level deeper) with the given name or NULL
-// if not found
-ezxml_t ezxml_child(ezxml_t xml, const char *name);
-
-// returns the next tag of the same name in the same section and depth or NULL
-// if not found
-#define ezxml_next(xml) ((xml) ? xml->next : NULL)
-
-// Returns the Nth tag with the same name in the same section at the same depth
-// or NULL if not found. An index of 0 returns the tag given.
-ezxml_t ezxml_idx(ezxml_t xml, int idx);
-
-// returns the name of the given tag
-#define ezxml_name(xml) ((xml) ? xml->name : NULL)
-
-// returns the given tag's character content or empty string if none
-#define ezxml_txt(xml) ((xml) ? xml->txt : "")
-
-// returns the value of the requested tag attribute, or NULL if not found
-const char *ezxml_attr(ezxml_t xml, const char *attr);
-
-// Traverses the ezxml sturcture to retrieve a specific subtag. Takes a
-// variable length list of tag names and indexes. The argument list must be
-// terminated by either an index of -1 or an empty string tag name. Example:
-// title = ezxml_get(library, "shelf", 0, "book", 2, "title", -1);
-// This retrieves the title of the 3rd book on the 1st shelf of library.
-// Returns NULL if not found.
-ezxml_t ezxml_get(ezxml_t xml, ...);
-
-// Converts an ezxml structure back to xml. Returns a string of xml data that
-// must be freed.
-char *ezxml_toxml(ezxml_t xml);
-
-// returns a NULL terminated array of processing instructions for the given
-// target
-const char **ezxml_pi(ezxml_t xml, const char *target);
-
-// frees the memory allocated for an ezxml structure
-void ezxml_free(ezxml_t xml);
-
-// returns parser error message or empty string if none
-const char *ezxml_error(ezxml_t xml);
-
-// returns a new empty ezxml structure with the given root tag name
-ezxml_t ezxml_new(const char *name);
-
-// wrapper for ezxml_new() that strdup()s name
-#define ezxml_new_d(name) ezxml_set_flag(ezxml_new(strdup(name)), EZXML_NAMEM)
-
-// Adds a child tag. off is the offset of the child tag relative to the start
-// of the parent tag's character content. Returns the child tag.
-ezxml_t ezxml_add_child(ezxml_t xml, const char *name, size_t off);
-
-// wrapper for ezxml_add_child() that strdup()s name
-#define ezxml_add_child_d(xml, name, off) \
- ezxml_set_flag(ezxml_add_child(xml, strdup(name), off), EZXML_NAMEM)
-
-// sets the character content for the given tag and returns the tag
-ezxml_t ezxml_set_txt(ezxml_t xml, const char *txt);
-
-// wrapper for ezxml_set_txt() that strdup()s txt
-#define ezxml_set_txt_d(xml, txt) \
- ezxml_set_flag(ezxml_set_txt(xml, strdup(txt)), EZXML_TXTM)
-
-// Sets the given tag attribute or adds a new attribute if not found. A value
-// of NULL will remove the specified attribute. Returns the tag given.
-ezxml_t ezxml_set_attr(ezxml_t xml, const char *name, const char *value);
-
-// Wrapper for ezxml_set_attr() that strdup()s name/value. Value cannot be NULL
-#define ezxml_set_attr_d(xml, name, value) \
- ezxml_set_attr(ezxml_set_flag(xml, EZXML_DUP), strdup(name), strdup(value))
-
-// sets a flag for the given tag and returns the tag
-ezxml_t ezxml_set_flag(ezxml_t xml, short flag);
-
-// removes a tag along with its subtags without freeing its memory
-ezxml_t ezxml_cut(ezxml_t xml);
-
-// inserts an existing tag into an ezxml structure
-ezxml_t ezxml_insert(ezxml_t xml, ezxml_t dest, size_t off);
-
-// Moves an existing tag to become a subtag of dest at the given offset from
-// the start of dest's character content. Returns the moved tag.
-#define ezxml_move(xml, dest, off) ezxml_insert(ezxml_cut(xml), dest, off)
-
-// removes a tag along with all its subtags
-#define ezxml_remove(xml) ezxml_free(ezxml_cut(xml))
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif // _EZXML_H
diff --git a/3rdparty/stb_ds.h b/3rdparty/stb_ds.h
deleted file mode 100644
index e84c82d..0000000
--- a/3rdparty/stb_ds.h
+++ /dev/null
@@ -1,1895 +0,0 @@
-/* stb_ds.h - v0.67 - public domain data structures - Sean Barrett 2019
-
- This is a single-header-file library that provides easy-to-use
- dynamic arrays and hash tables for C (also works in C++).
-
- For a gentle introduction:
- http://nothings.org/stb_ds
-
- To use this library, do this in *one* C or C++ file:
- #define STB_DS_IMPLEMENTATION
- #include "stb_ds.h"
-
-TABLE OF CONTENTS
-
- Table of Contents
- Compile-time options
- License
- Documentation
- Notes
- Notes - Dynamic arrays
- Notes - Hash maps
- Credits
-
-COMPILE-TIME OPTIONS
-
- #define STBDS_NO_SHORT_NAMES
-
- This flag needs to be set globally.
-
- By default stb_ds exposes shorter function names that are not qualified
- with the "stbds_" prefix. If these names conflict with the names in your
- code, define this flag.
-
- #define STBDS_SIPHASH_2_4
-
- This flag only needs to be set in the file containing #define STB_DS_IMPLEMENTATION.
-
- By default stb_ds.h hashes using a weaker variant of SipHash and a custom hash for
- 4- and 8-byte keys. On 64-bit platforms, you can define the above flag to force
- stb_ds.h to use specification-compliant SipHash-2-4 for all keys. Doing so makes
- hash table insertion about 20% slower on 4- and 8-byte keys, 5% slower on
- 64-byte keys, and 10% slower on 256-byte keys on my test computer.
-
- #define STBDS_REALLOC(context,ptr,size) better_realloc
- #define STBDS_FREE(context,ptr) better_free
-
- These defines only need to be set in the file containing #define STB_DS_IMPLEMENTATION.
-
- By default stb_ds uses stdlib realloc() and free() for memory management. You can
- substitute your own functions instead by defining these symbols. You must either
- define both, or neither. Note that at the moment, 'context' will always be NULL.
- @TODO add an array/hash initialization function that takes a memory context pointer.
-
- #define STBDS_UNIT_TESTS
-
- Defines a function stbds_unit_tests() that checks the functioning of the data structures.
-
- Note that on older versions of gcc (e.g. 5.x.x) you may need to build with '-std=c++0x'
- (or equivalentally '-std=c++11') when using anonymous structures as seen on the web
- page or in STBDS_UNIT_TESTS.
-
-LICENSE
-
- Placed in the public domain and also MIT licensed.
- See end of file for detailed license information.
-
-DOCUMENTATION
-
- Dynamic Arrays
-
- Non-function interface:
-
- Declare an empty dynamic array of type T
- T* foo = NULL;
-
- Access the i'th item of a dynamic array 'foo' of type T, T* foo:
- foo[i]
-
- Functions (actually macros)
-
- arrfree:
- void arrfree(T*);
- Frees the array.
-
- arrlen:
- ptrdiff_t arrlen(T*);
- Returns the number of elements in the array.
-
- arrlenu:
- size_t arrlenu(T*);
- Returns the number of elements in the array as an unsigned type.
-
- arrpop:
- T arrpop(T* a)
- Removes the final element of the array and returns it.
-
- arrput:
- T arrput(T* a, T b);
- Appends the item b to the end of array a. Returns b.
-
- arrins:
- T arrins(T* a, int p, T b);
- Inserts the item b into the middle of array a, into a[p],
- moving the rest of the array over. Returns b.
-
- arrinsn:
- void arrinsn(T* a, int p, int n);
- Inserts n uninitialized items into array a starting at a[p],
- moving the rest of the array over.
-
- arraddnptr:
- T* arraddnptr(T* a, int n)
- Appends n uninitialized items onto array at the end.
- Returns a pointer to the first uninitialized item added.
-
- arraddnindex:
- size_t arraddnindex(T* a, int n)
- Appends n uninitialized items onto array at the end.
- Returns the index of the first uninitialized item added.
-
- arrdel:
- void arrdel(T* a, int p);
- Deletes the element at a[p], moving the rest of the array over.
-
- arrdeln:
- void arrdeln(T* a, int p, int n);
- Deletes n elements starting at a[p], moving the rest of the array over.
-
- arrdelswap:
- void arrdelswap(T* a, int p);
- Deletes the element at a[p], replacing it with the element from
- the end of the array. O(1) performance.
-
- arrsetlen:
- void arrsetlen(T* a, int n);
- Changes the length of the array to n. Allocates uninitialized
- slots at the end if necessary.
-
- arrsetcap:
- size_t arrsetcap(T* a, int n);
- Sets the length of allocated storage to at least n. It will not
- change the length of the array.
-
- arrcap:
- size_t arrcap(T* a);
- Returns the number of total elements the array can contain without
- needing to be reallocated.
-
- Hash maps & String hash maps
-
- Given T is a structure type: struct { TK key; TV value; }. Note that some
- functions do not require TV value and can have other fields. For string
- hash maps, TK must be 'char *'.
-
- Special interface:
-
- stbds_rand_seed:
- void stbds_rand_seed(size_t seed);
- For security against adversarially chosen data, you should seed the
- library with a strong random number. Or at least seed it with time().
-
- stbds_hash_string:
- size_t stbds_hash_string(char *str, size_t seed);
- Returns a hash value for a string.
-
- stbds_hash_bytes:
- size_t stbds_hash_bytes(void *p, size_t len, size_t seed);
- These functions hash an arbitrary number of bytes. The function
- uses a custom hash for 4- and 8-byte data, and a weakened version
- of SipHash for everything else. On 64-bit platforms you can get
- specification-compliant SipHash-2-4 on all data by defining
- STBDS_SIPHASH_2_4, at a significant cost in speed.
-
- Non-function interface:
-
- Declare an empty hash map of type T
- T* foo = NULL;
-
- Access the i'th entry in a hash table T* foo:
- foo[i]
-
- Function interface (actually macros):
-
- hmfree
- shfree
- void hmfree(T*);
- void shfree(T*);
- Frees the hashmap and sets the pointer to NULL.
-
- hmlen
- shlen
- ptrdiff_t hmlen(T*)
- ptrdiff_t shlen(T*)
- Returns the number of elements in the hashmap.
-
- hmlenu
- shlenu
- size_t hmlenu(T*)
- size_t shlenu(T*)
- Returns the number of elements in the hashmap.
-
- hmgeti
- shgeti
- hmgeti_ts
- ptrdiff_t hmgeti(T*, TK key)
- ptrdiff_t shgeti(T*, char* key)
- ptrdiff_t hmgeti_ts(T*, TK key, ptrdiff_t tempvar)
- Returns the index in the hashmap which has the key 'key', or -1
- if the key is not present.
-
- hmget
- hmget_ts
- shget
- TV hmget(T*, TK key)
- TV shget(T*, char* key)
- TV hmget_ts(T*, TK key, ptrdiff_t tempvar)
- Returns the value corresponding to 'key' in the hashmap.
- The structure must have a 'value' field
-
- hmgets
- shgets
- T hmgets(T*, TK key)
- T shgets(T*, char* key)
- Returns the structure corresponding to 'key' in the hashmap.
-
- hmgetp
- shgetp
- hmgetp_ts
- hmgetp_null
- shgetp_null
- T* hmgetp(T*, TK key)
- T* shgetp(T*, char* key)
- T* hmgetp_ts(T*, TK key, ptrdiff_t tempvar)
- T* hmgetp_null(T*, TK key)
- T* shgetp_null(T*, char *key)
- Returns a pointer to the structure corresponding to 'key' in
- the hashmap. Functions ending in "_null" return NULL if the key
- is not present in the hashmap; the others return a pointer to a
- structure holding the default value (but not the searched-for key).
-
- hmdefault
- shdefault
- TV hmdefault(T*, TV value)
- TV shdefault(T*, TV value)
- Sets the default value for the hashmap, the value which will be
- returned by hmget/shget if the key is not present.
-
- hmdefaults
- shdefaults
- TV hmdefaults(T*, T item)
- TV shdefaults(T*, T item)
- Sets the default struct for the hashmap, the contents which will be
- returned by hmgets/shgets if the key is not present.
-
- hmput
- shput
- TV hmput(T*, TK key, TV value)
- TV shput(T*, char* key, TV value)
- Inserts a <key,value> pair into the hashmap. If the key is already
- present in the hashmap, updates its value.
-
- hmputs
- shputs
- T hmputs(T*, T item)
- T shputs(T*, T item)
- Inserts a struct with T.key into the hashmap. If the struct is already
- present in the hashmap, updates it.
-
- hmdel
- shdel
- int hmdel(T*, TK key)
- int shdel(T*, char* key)
- If 'key' is in the hashmap, deletes its entry and returns 1.
- Otherwise returns 0.
-
- Function interface (actually macros) for strings only:
-
- sh_new_strdup
- void sh_new_strdup(T*);
- Overwrites the existing pointer with a newly allocated
- string hashmap which will automatically allocate and free
- each string key using realloc/free
-
- sh_new_arena
- void sh_new_arena(T*);
- Overwrites the existing pointer with a newly allocated
- string hashmap which will automatically allocate each string
- key to a string arena. Every string key ever used by this
- hash table remains in the arena until the arena is freed.
- Additionally, any key which is deleted and reinserted will
- be allocated multiple times in the string arena.
-
-NOTES
-
- * These data structures are realloc'd when they grow, and the macro
- "functions" write to the provided pointer. This means: (a) the pointer
- must be an lvalue, and (b) the pointer to the data structure is not
- stable, and you must maintain it the same as you would a realloc'd
- pointer. For example, if you pass a pointer to a dynamic array to a
- function which updates it, the function must return back the new
- pointer to the caller. This is the price of trying to do this in C.
-
- * The following are the only functions that are thread-safe on a single data
- structure, i.e. can be run in multiple threads simultaneously on the same
- data structure
- hmlen shlen
- hmlenu shlenu
- hmget_ts shget_ts
- hmgeti_ts shgeti_ts
- hmgets_ts shgets_ts
-
- * You iterate over the contents of a dynamic array and a hashmap in exactly
- the same way, using arrlen/hmlen/shlen:
-
- for (i=0; i < arrlen(foo); ++i)
- ... foo[i] ...
-
- * All operations except arrins/arrdel are O(1) amortized, but individual
- operations can be slow, so these data structures may not be suitable
- for real time use. Dynamic arrays double in capacity as needed, so
- elements are copied an average of once. Hash tables double/halve
- their size as needed, with appropriate hysteresis to maintain O(1)
- performance.
-
-NOTES - DYNAMIC ARRAY
-
- * If you know how long a dynamic array is going to be in advance, you can avoid
- extra memory allocations by using arrsetlen to allocate it to that length in
- advance and use foo[n] while filling it out, or arrsetcap to allocate the memory
- for that length and use arrput/arrpush as normal.
-
- * Unlike some other versions of the dynamic array, this version should
- be safe to use with strict-aliasing optimizations.
-
-NOTES - HASH MAP
-
- * For compilers other than GCC and clang (e.g. Visual Studio), for hmput/hmget/hmdel
- and variants, the key must be an lvalue (so the macro can take the address of it).
- Extensions are used that eliminate this requirement if you're using C99 and later
- in GCC or clang, or if you're using C++ in GCC. But note that this can make your
- code less portable.
-
- * To test for presence of a key in a hashmap, just do 'hmgeti(foo,key) >= 0'.
-
- * The iteration order of your data in the hashmap is determined solely by the
- order of insertions and deletions. In particular, if you never delete, new
- keys are always added at the end of the array. This will be consistent
- across all platforms and versions of the library. However, you should not
- attempt to serialize the internal hash table, as the hash is not consistent
- between different platforms, and may change with future versions of the library.
-
- * Use sh_new_arena() for string hashmaps that you never delete from. Initialize
- with NULL if you're managing the memory for your strings, or your strings are
- never freed (at least until the hashmap is freed). Otherwise, use sh_new_strdup().
- @TODO: make an arena variant that garbage collects the strings with a trivial
- copy collector into a new arena whenever the table shrinks / rebuilds. Since
- current arena recommendation is to only use arena if it never deletes, then
- this can just replace current arena implementation.
-
- * If adversarial input is a serious concern and you're on a 64-bit platform,
- enable STBDS_SIPHASH_2_4 (see the 'Compile-time options' section), and pass
- a strong random number to stbds_rand_seed.
-
- * The default value for the hash table is stored in foo[-1], so if you
- use code like 'hmget(T,k)->value = 5' you can accidentally overwrite
- the value stored by hmdefault if 'k' is not present.
-
-CREDITS
-
- Sean Barrett -- library, idea for dynamic array API/implementation
- Per Vognsen -- idea for hash table API/implementation
- Rafael Sachetto -- arrpop()
- github:HeroicKatora -- arraddn() reworking
-
- Bugfixes:
- Andy Durdin
- Shane Liesegang
- Vinh Truong
- Andreas Molzer
- github:hashitaku
- github:srdjanstipic
- Macoy Madson
- Andreas Vennstrom
- Tobias Mansfield-Williams
-*/
-
-#ifdef STBDS_UNIT_TESTS
-#define _CRT_SECURE_NO_WARNINGS
-#endif
-
-#ifndef INCLUDE_STB_DS_H
-#define INCLUDE_STB_DS_H
-
-#include <stddef.h>
-#include <string.h>
-
-#ifndef STBDS_NO_SHORT_NAMES
-#define arrlen stbds_arrlen
-#define arrlenu stbds_arrlenu
-#define arrput stbds_arrput
-#define arrpush stbds_arrput
-#define arrpop stbds_arrpop
-#define arrfree stbds_arrfree
-#define arraddn stbds_arraddn // deprecated, use one of the following instead:
-#define arraddnptr stbds_arraddnptr
-#define arraddnindex stbds_arraddnindex
-#define arrsetlen stbds_arrsetlen
-#define arrlast stbds_arrlast
-#define arrins stbds_arrins
-#define arrinsn stbds_arrinsn
-#define arrdel stbds_arrdel
-#define arrdeln stbds_arrdeln
-#define arrdelswap stbds_arrdelswap
-#define arrcap stbds_arrcap
-#define arrsetcap stbds_arrsetcap
-
-#define hmput stbds_hmput
-#define hmputs stbds_hmputs
-#define hmget stbds_hmget
-#define hmget_ts stbds_hmget_ts
-#define hmgets stbds_hmgets
-#define hmgetp stbds_hmgetp
-#define hmgetp_ts stbds_hmgetp_ts
-#define hmgetp_null stbds_hmgetp_null
-#define hmgeti stbds_hmgeti
-#define hmgeti_ts stbds_hmgeti_ts
-#define hmdel stbds_hmdel
-#define hmlen stbds_hmlen
-#define hmlenu stbds_hmlenu
-#define hmfree stbds_hmfree
-#define hmdefault stbds_hmdefault
-#define hmdefaults stbds_hmdefaults
-
-#define shput stbds_shput
-#define shputi stbds_shputi
-#define shputs stbds_shputs
-#define shget stbds_shget
-#define shgeti stbds_shgeti
-#define shgets stbds_shgets
-#define shgetp stbds_shgetp
-#define shgetp_null stbds_shgetp_null
-#define shdel stbds_shdel
-#define shlen stbds_shlen
-#define shlenu stbds_shlenu
-#define shfree stbds_shfree
-#define shdefault stbds_shdefault
-#define shdefaults stbds_shdefaults
-#define sh_new_arena stbds_sh_new_arena
-#define sh_new_strdup stbds_sh_new_strdup
-
-#define stralloc stbds_stralloc
-#define strreset stbds_strreset
-#endif
-
-#if defined(STBDS_REALLOC) && !defined(STBDS_FREE) || !defined(STBDS_REALLOC) && defined(STBDS_FREE)
-#error "You must define both STBDS_REALLOC and STBDS_FREE, or neither."
-#endif
-#if !defined(STBDS_REALLOC) && !defined(STBDS_FREE)
-#include <stdlib.h>
-#define STBDS_REALLOC(c,p,s) realloc(p,s)
-#define STBDS_FREE(c,p) free(p)
-#endif
-
-#ifdef _MSC_VER
-#define STBDS_NOTUSED(v) (void)(v)
-#else
-#define STBDS_NOTUSED(v) (void)sizeof(v)
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-// for security against attackers, seed the library with a random number, at least time() but stronger is better
-extern void stbds_rand_seed(size_t seed);
-
-// these are the hash functions used internally if you want to test them or use them for other purposes
-extern size_t stbds_hash_bytes(void *p, size_t len, size_t seed);
-extern size_t stbds_hash_string(char *str, size_t seed);
-
-// this is a simple string arena allocator, initialize with e.g. 'stbds_string_arena my_arena={0}'.
-typedef struct stbds_string_arena stbds_string_arena;
-extern char * stbds_stralloc(stbds_string_arena *a, char *str);
-extern void stbds_strreset(stbds_string_arena *a);
-
-// have to #define STBDS_UNIT_TESTS to call this
-extern void stbds_unit_tests(void);
-
-///////////////
-//
-// Everything below here is implementation details
-//
-
-extern void * stbds_arrgrowf(void *a, size_t elemsize, size_t addlen, size_t min_cap);
-extern void stbds_arrfreef(void *a);
-extern void stbds_hmfree_func(void *p, size_t elemsize);
-extern void * stbds_hmget_key(void *a, size_t elemsize, void *key, size_t keysize, int mode);
-extern void * stbds_hmget_key_ts(void *a, size_t elemsize, void *key, size_t keysize, ptrdiff_t *temp, int mode);
-extern void * stbds_hmput_default(void *a, size_t elemsize);
-extern void * stbds_hmput_key(void *a, size_t elemsize, void *key, size_t keysize, int mode);
-extern void * stbds_hmdel_key(void *a, size_t elemsize, void *key, size_t keysize, size_t keyoffset, int mode);
-extern void * stbds_shmode_func(size_t elemsize, int mode);
-
-#ifdef __cplusplus
-}
-#endif
-
-#if defined(__GNUC__) || defined(__clang__)
-#define STBDS_HAS_TYPEOF
-#ifdef __cplusplus
-//#define STBDS_HAS_LITERAL_ARRAY // this is currently broken for clang
-#endif
-#endif
-
-#if !defined(__cplusplus)
-#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
-#define STBDS_HAS_LITERAL_ARRAY
-#endif
-#endif
-
-// this macro takes the address of the argument, but on gcc/clang can accept rvalues
-#if defined(STBDS_HAS_LITERAL_ARRAY) && defined(STBDS_HAS_TYPEOF)
- #if __clang__
- #define STBDS_ADDRESSOF(typevar, value) ((__typeof__(typevar)[1]){value}) // literal array decays to pointer to value
- #else
- #define STBDS_ADDRESSOF(typevar, value) ((typeof(typevar)[1]){value}) // literal array decays to pointer to value
- #endif
-#else
-#define STBDS_ADDRESSOF(typevar, value) &(value)
-#endif
-
-#define STBDS_OFFSETOF(var,field) ((char *) &(var)->field - (char *) (var))
-
-#define stbds_header(t) ((stbds_array_header *) (t) - 1)
-#define stbds_temp(t) stbds_header(t)->temp
-#define stbds_temp_key(t) (*(char **) stbds_header(t)->hash_table)
-
-#define stbds_arrsetcap(a,n) (stbds_arrgrow(a,0,n))
-#define stbds_arrsetlen(a,n) ((stbds_arrcap(a) < (size_t) (n) ? stbds_arrsetcap((a),(size_t)(n)),0 : 0), (a) ? stbds_header(a)->length = (size_t) (n) : 0)
-#define stbds_arrcap(a) ((a) ? stbds_header(a)->capacity : 0)
-#define stbds_arrlen(a) ((a) ? (ptrdiff_t) stbds_header(a)->length : 0)
-#define stbds_arrlenu(a) ((a) ? stbds_header(a)->length : 0)
-#define stbds_arrput(a,v) (stbds_arrmaybegrow(a,1), (a)[stbds_header(a)->length++] = (v))
-#define stbds_arrpush stbds_arrput // synonym
-#define stbds_arrpop(a) (stbds_header(a)->length--, (a)[stbds_header(a)->length])
-#define stbds_arraddn(a,n) ((void)(stbds_arraddnindex(a, n))) // deprecated, use one of the following instead:
-#define stbds_arraddnptr(a,n) (stbds_arrmaybegrow(a,n), (n) ? (stbds_header(a)->length += (n), &(a)[stbds_header(a)->length-(n)]) : (a))
-#define stbds_arraddnindex(a,n)(stbds_arrmaybegrow(a,n), (n) ? (stbds_header(a)->length += (n), stbds_header(a)->length-(n)) : stbds_arrlen(a))
-#define stbds_arraddnoff stbds_arraddnindex
-#define stbds_arrlast(a) ((a)[stbds_header(a)->length-1])
-#define stbds_arrfree(a) ((void) ((a) ? STBDS_FREE(NULL,stbds_header(a)) : (void)0), (a)=NULL)
-#define stbds_arrdel(a,i) stbds_arrdeln(a,i,1)
-#define stbds_arrdeln(a,i,n) (memmove(&(a)[i], &(a)[(i)+(n)], sizeof *(a) * (stbds_header(a)->length-(n)-(i))), stbds_header(a)->length -= (n))
-#define stbds_arrdelswap(a,i) ((a)[i] = stbds_arrlast(a), stbds_header(a)->length -= 1)
-#define stbds_arrinsn(a,i,n) (stbds_arraddn((a),(n)), memmove(&(a)[(i)+(n)], &(a)[i], sizeof *(a) * (stbds_header(a)->length-(n)-(i))))
-#define stbds_arrins(a,i,v) (stbds_arrinsn((a),(i),1), (a)[i]=(v))
-
-#define stbds_arrmaybegrow(a,n) ((!(a) || stbds_header(a)->length + (n) > stbds_header(a)->capacity) \
- ? (stbds_arrgrow(a,n,0),0) : 0)
-
-#define stbds_arrgrow(a,b,c) ((a) = stbds_arrgrowf_wrapper((a), sizeof *(a), (b), (c)))
-
-#define stbds_hmput(t, k, v) \
- ((t) = stbds_hmput_key_wrapper((t), sizeof *(t), (void*) STBDS_ADDRESSOF((t)->key, (k)), sizeof (t)->key, 0), \
- (t)[stbds_temp((t)-1)].key = (k), \
- (t)[stbds_temp((t)-1)].value = (v))
-
-#define stbds_hmputs(t, s) \
- ((t) = stbds_hmput_key_wrapper((t), sizeof *(t), &(s).key, sizeof (s).key, STBDS_HM_BINARY), \
- (t)[stbds_temp((t)-1)] = (s))
-
-#define stbds_hmgeti(t,k) \
- ((t) = stbds_hmget_key_wrapper((t), sizeof *(t), (void*) STBDS_ADDRESSOF((t)->key, (k)), sizeof (t)->key, STBDS_HM_BINARY), \
- stbds_temp((t)-1))
-
-#define stbds_hmgeti_ts(t,k,temp) \
- ((t) = stbds_hmget_key_ts_wrapper((t), sizeof *(t), (void*) STBDS_ADDRESSOF((t)->key, (k)), sizeof (t)->key, &(temp), STBDS_HM_BINARY), \
- (temp))
-
-#define stbds_hmgetp(t, k) \
- ((void) stbds_hmgeti(t,k), &(t)[stbds_temp((t)-1)])
-
-#define stbds_hmgetp_ts(t, k, temp) \
- ((void) stbds_hmgeti_ts(t,k,temp), &(t)[temp])
-
-#define stbds_hmdel(t,k) \
- (((t) = stbds_hmdel_key_wrapper((t),sizeof *(t), (void*) STBDS_ADDRESSOF((t)->key, (k)), sizeof (t)->key, STBDS_OFFSETOF((t),key), STBDS_HM_BINARY)),(t)?stbds_temp((t)-1):0)
-
-#define stbds_hmdefault(t, v) \
- ((t) = stbds_hmput_default_wrapper((t), sizeof *(t)), (t)[-1].value = (v))
-
-#define stbds_hmdefaults(t, s) \
- ((t) = stbds_hmput_default_wrapper((t), sizeof *(t)), (t)[-1] = (s))
-
-#define stbds_hmfree(p) \
- ((void) ((p) != NULL ? stbds_hmfree_func((p)-1,sizeof*(p)),0 : 0),(p)=NULL)
-
-#define stbds_hmgets(t, k) (*stbds_hmgetp(t,k))
-#define stbds_hmget(t, k) (stbds_hmgetp(t,k)->value)
-#define stbds_hmget_ts(t, k, temp) (stbds_hmgetp_ts(t,k,temp)->value)
-#define stbds_hmlen(t) ((t) ? (ptrdiff_t) stbds_header((t)-1)->length-1 : 0)
-#define stbds_hmlenu(t) ((t) ? stbds_header((t)-1)->length-1 : 0)
-#define stbds_hmgetp_null(t,k) (stbds_hmgeti(t,k) == -1 ? NULL : &(t)[stbds_temp((t)-1)])
-
-#define stbds_shput(t, k, v) \
- ((t) = stbds_hmput_key_wrapper((t), sizeof *(t), (void*) (k), sizeof (t)->key, STBDS_HM_STRING), \
- (t)[stbds_temp((t)-1)].value = (v))
-
-#define stbds_shputi(t, k, v) \
- ((t) = stbds_hmput_key_wrapper((t), sizeof *(t), (void*) (k), sizeof (t)->key, STBDS_HM_STRING), \
- (t)[stbds_temp((t)-1)].value = (v), stbds_temp((t)-1))
-
-#define stbds_shputs(t, s) \
- ((t) = stbds_hmput_key_wrapper((t), sizeof *(t), (void*) (s).key, sizeof (s).key, STBDS_HM_STRING), \
- (t)[stbds_temp((t)-1)] = (s), \
- (t)[stbds_temp((t)-1)].key = stbds_temp_key((t)-1)) // above line overwrites whole structure, so must rewrite key here if it was allocated internally
-
-#define stbds_pshput(t, p) \
- ((t) = stbds_hmput_key_wrapper((t), sizeof *(t), (void*) (p)->key, sizeof (p)->key, STBDS_HM_PTR_TO_STRING), \
- (t)[stbds_temp((t)-1)] = (p))
-
-#define stbds_shgeti(t,k) \
- ((t) = stbds_hmget_key_wrapper((t), sizeof *(t), (void*) (k), sizeof (t)->key, STBDS_HM_STRING), \
- stbds_temp((t)-1))
-
-#define stbds_pshgeti(t,k) \
- ((t) = stbds_hmget_key_wrapper((t), sizeof *(t), (void*) (k), sizeof (*(t))->key, STBDS_HM_PTR_TO_STRING), \
- stbds_temp((t)-1))
-
-#define stbds_shgetp(t, k) \
- ((void) stbds_shgeti(t,k), &(t)[stbds_temp((t)-1)])
-
-#define stbds_pshget(t, k) \
- ((void) stbds_pshgeti(t,k), (t)[stbds_temp((t)-1)])
-
-#define stbds_shdel(t,k) \
- (((t) = stbds_hmdel_key_wrapper((t),sizeof *(t), (void*) (k), sizeof (t)->key, STBDS_OFFSETOF((t),key), STBDS_HM_STRING)),(t)?stbds_temp((t)-1):0)
-#define stbds_pshdel(t,k) \
- (((t) = stbds_hmdel_key_wrapper((t),sizeof *(t), (void*) (k), sizeof (*(t))->key, STBDS_OFFSETOF(*(t),key), STBDS_HM_PTR_TO_STRING)),(t)?stbds_temp((t)-1):0)
-
-#define stbds_sh_new_arena(t) \
- ((t) = stbds_shmode_func_wrapper(t, sizeof *(t), STBDS_SH_ARENA))
-#define stbds_sh_new_strdup(t) \
- ((t) = stbds_shmode_func_wrapper(t, sizeof *(t), STBDS_SH_STRDUP))
-
-#define stbds_shdefault(t, v) stbds_hmdefault(t,v)
-#define stbds_shdefaults(t, s) stbds_hmdefaults(t,s)
-
-#define stbds_shfree stbds_hmfree
-#define stbds_shlenu stbds_hmlenu
-
-#define stbds_shgets(t, k) (*stbds_shgetp(t,k))
-#define stbds_shget(t, k) (stbds_shgetp(t,k)->value)
-#define stbds_shgetp_null(t,k) (stbds_shgeti(t,k) == -1 ? NULL : &(t)[stbds_temp((t)-1)])
-#define stbds_shlen stbds_hmlen
-
-typedef struct
-{
- size_t length;
- size_t capacity;
- void * hash_table;
- ptrdiff_t temp;
-} stbds_array_header;
-
-typedef struct stbds_string_block
-{
- struct stbds_string_block *next;
- char storage[8];
-} stbds_string_block;
-
-struct stbds_string_arena
-{
- stbds_string_block *storage;
- size_t remaining;
- unsigned char block;
- unsigned char mode; // this isn't used by the string arena itself
-};
-
-#define STBDS_HM_BINARY 0
-#define STBDS_HM_STRING 1
-
-enum
-{
- STBDS_SH_NONE,
- STBDS_SH_DEFAULT,
- STBDS_SH_STRDUP,
- STBDS_SH_ARENA
-};
-
-#ifdef __cplusplus
-// in C we use implicit assignment from these void*-returning functions to T*.
-// in C++ these templates make the same code work
-template<class T> static T * stbds_arrgrowf_wrapper(T *a, size_t elemsize, size_t addlen, size_t min_cap) {
- return (T*)stbds_arrgrowf((void *)a, elemsize, addlen, min_cap);
-}
-template<class T> static T * stbds_hmget_key_wrapper(T *a, size_t elemsize, void *key, size_t keysize, int mode) {
- return (T*)stbds_hmget_key((void*)a, elemsize, key, keysize, mode);
-}
-template<class T> static T * stbds_hmget_key_ts_wrapper(T *a, size_t elemsize, void *key, size_t keysize, ptrdiff_t *temp, int mode) {
- return (T*)stbds_hmget_key_ts((void*)a, elemsize, key, keysize, temp, mode);
-}
-template<class T> static T * stbds_hmput_default_wrapper(T *a, size_t elemsize) {
- return (T*)stbds_hmput_default((void *)a, elemsize);
-}
-template<class T> static T * stbds_hmput_key_wrapper(T *a, size_t elemsize, void *key, size_t keysize, int mode) {
- return (T*)stbds_hmput_key((void*)a, elemsize, key, keysize, mode);
-}
-template<class T> static T * stbds_hmdel_key_wrapper(T *a, size_t elemsize, void *key, size_t keysize, size_t keyoffset, int mode){
- return (T*)stbds_hmdel_key((void*)a, elemsize, key, keysize, keyoffset, mode);
-}
-template<class T> static T * stbds_shmode_func_wrapper(T *, size_t elemsize, int mode) {
- return (T*)stbds_shmode_func(elemsize, mode);
-}
-#else
-#define stbds_arrgrowf_wrapper stbds_arrgrowf
-#define stbds_hmget_key_wrapper stbds_hmget_key
-#define stbds_hmget_key_ts_wrapper stbds_hmget_key_ts
-#define stbds_hmput_default_wrapper stbds_hmput_default
-#define stbds_hmput_key_wrapper stbds_hmput_key
-#define stbds_hmdel_key_wrapper stbds_hmdel_key
-#define stbds_shmode_func_wrapper(t,e,m) stbds_shmode_func(e,m)
-#endif
-
-#endif // INCLUDE_STB_DS_H
-
-
-//////////////////////////////////////////////////////////////////////////////
-//
-// IMPLEMENTATION
-//
-
-#ifdef STB_DS_IMPLEMENTATION
-#include <assert.h>
-#include <string.h>
-
-#ifndef STBDS_ASSERT
-#define STBDS_ASSERT_WAS_UNDEFINED
-#define STBDS_ASSERT(x) ((void) 0)
-#endif
-
-#ifdef STBDS_STATISTICS
-#define STBDS_STATS(x) x
-size_t stbds_array_grow;
-size_t stbds_hash_grow;
-size_t stbds_hash_shrink;
-size_t stbds_hash_rebuild;
-size_t stbds_hash_probes;
-size_t stbds_hash_alloc;
-size_t stbds_rehash_probes;
-size_t stbds_rehash_items;
-#else
-#define STBDS_STATS(x)
-#endif
-
-//
-// stbds_arr implementation
-//
-
-//int *prev_allocs[65536];
-//int num_prev;
-
-void *stbds_arrgrowf(void *a, size_t elemsize, size_t addlen, size_t min_cap)
-{
- stbds_array_header temp={0}; // force debugging
- void *b;
- size_t min_len = stbds_arrlen(a) + addlen;
- (void) sizeof(temp);
-
- // compute the minimum capacity needed
- if (min_len > min_cap)
- min_cap = min_len;
-
- if (min_cap <= stbds_arrcap(a))
- return a;
-
- // increase needed capacity to guarantee O(1) amortized
- if (min_cap < 2 * stbds_arrcap(a))
- min_cap = 2 * stbds_arrcap(a);
- else if (min_cap < 4)
- min_cap = 4;
-
- //if (num_prev < 65536) if (a) prev_allocs[num_prev++] = (int *) ((char *) a+1);
- //if (num_prev == 2201)
- // num_prev = num_prev;
- b = STBDS_REALLOC(NULL, (a) ? stbds_header(a) : 0, elemsize * min_cap + sizeof(stbds_array_header));
- //if (num_prev < 65536) prev_allocs[num_prev++] = (int *) (char *) b;
- b = (char *) b + sizeof(stbds_array_header);
- if (a == NULL) {
- stbds_header(b)->length = 0;
- stbds_header(b)->hash_table = 0;
- stbds_header(b)->temp = 0;
- } else {
- STBDS_STATS(++stbds_array_grow);
- }
- stbds_header(b)->capacity = min_cap;
-
- return b;
-}
-
-void stbds_arrfreef(void *a)
-{
- STBDS_FREE(NULL, stbds_header(a));
-}
-
-//
-// stbds_hm hash table implementation
-//
-
-#ifdef STBDS_INTERNAL_SMALL_BUCKET
-#define STBDS_BUCKET_LENGTH 4
-#else
-#define STBDS_BUCKET_LENGTH 8
-#endif
-
-#define STBDS_BUCKET_SHIFT (STBDS_BUCKET_LENGTH == 8 ? 3 : 2)
-#define STBDS_BUCKET_MASK (STBDS_BUCKET_LENGTH-1)
-#define STBDS_CACHE_LINE_SIZE 64
-
-#define STBDS_ALIGN_FWD(n,a) (((n) + (a) - 1) & ~((a)-1))
-
-typedef struct
-{
- size_t hash [STBDS_BUCKET_LENGTH];
- ptrdiff_t index[STBDS_BUCKET_LENGTH];
-} stbds_hash_bucket; // in 32-bit, this is one 64-byte cache line; in 64-bit, each array is one 64-byte cache line
-
-typedef struct
-{
- char * temp_key; // this MUST be the first field of the hash table
- size_t slot_count;
- size_t used_count;
- size_t used_count_threshold;
- size_t used_count_shrink_threshold;
- size_t tombstone_count;
- size_t tombstone_count_threshold;
- size_t seed;
- size_t slot_count_log2;
- stbds_string_arena string;
- stbds_hash_bucket *storage; // not a separate allocation, just 64-byte aligned storage after this struct
-} stbds_hash_index;
-
-#define STBDS_INDEX_EMPTY -1
-#define STBDS_INDEX_DELETED -2
-#define STBDS_INDEX_IN_USE(x) ((x) >= 0)
-
-#define STBDS_HASH_EMPTY 0
-#define STBDS_HASH_DELETED 1
-
-static size_t stbds_hash_seed=0x31415926;
-
-void stbds_rand_seed(size_t seed)
-{
- stbds_hash_seed = seed;
-}
-
-#define stbds_load_32_or_64(var, temp, v32, v64_hi, v64_lo) \
- temp = v64_lo ^ v32, temp <<= 16, temp <<= 16, temp >>= 16, temp >>= 16, /* discard if 32-bit */ \
- var = v64_hi, var <<= 16, var <<= 16, /* discard if 32-bit */ \
- var ^= temp ^ v32
-
-#define STBDS_SIZE_T_BITS ((sizeof (size_t)) * 8)
-
-static size_t stbds_probe_position(size_t hash, size_t slot_count, size_t slot_log2)
-{
- size_t pos;
- STBDS_NOTUSED(slot_log2);
- pos = hash & (slot_count-1);
- #ifdef STBDS_INTERNAL_BUCKET_START
- pos &= ~STBDS_BUCKET_MASK;
- #endif
- return pos;
-}
-
-static size_t stbds_log2(size_t slot_count)
-{
- size_t n=0;
- while (slot_count > 1) {
- slot_count >>= 1;
- ++n;
- }
- return n;
-}
-
-static stbds_hash_index *stbds_make_hash_index(size_t slot_count, stbds_hash_index *ot)
-{
- stbds_hash_index *t;
- t = (stbds_hash_index *) STBDS_REALLOC(NULL,0,(slot_count >> STBDS_BUCKET_SHIFT) * sizeof(stbds_hash_bucket) + sizeof(stbds_hash_index) + STBDS_CACHE_LINE_SIZE-1);
- t->storage = (stbds_hash_bucket *) STBDS_ALIGN_FWD((size_t) (t+1), STBDS_CACHE_LINE_SIZE);
- t->slot_count = slot_count;
- t->slot_count_log2 = stbds_log2(slot_count);
- t->tombstone_count = 0;
- t->used_count = 0;
-
- #if 0 // A1
- t->used_count_threshold = slot_count*12/16; // if 12/16th of table is occupied, grow
- t->tombstone_count_threshold = slot_count* 2/16; // if tombstones are 2/16th of table, rebuild
- t->used_count_shrink_threshold = slot_count* 4/16; // if table is only 4/16th full, shrink
- #elif 1 // A2
- //t->used_count_threshold = slot_count*12/16; // if 12/16th of table is occupied, grow
- //t->tombstone_count_threshold = slot_count* 3/16; // if tombstones are 3/16th of table, rebuild
- //t->used_count_shrink_threshold = slot_count* 4/16; // if table is only 4/16th full, shrink
-
- // compute without overflowing
- t->used_count_threshold = slot_count - (slot_count>>2);
- t->tombstone_count_threshold = (slot_count>>3) + (slot_count>>4);
- t->used_count_shrink_threshold = slot_count >> 2;
-
- #elif 0 // B1
- t->used_count_threshold = slot_count*13/16; // if 13/16th of table is occupied, grow
- t->tombstone_count_threshold = slot_count* 2/16; // if tombstones are 2/16th of table, rebuild
- t->used_count_shrink_threshold = slot_count* 5/16; // if table is only 5/16th full, shrink
- #else // C1
- t->used_count_threshold = slot_count*14/16; // if 14/16th of table is occupied, grow
- t->tombstone_count_threshold = slot_count* 2/16; // if tombstones are 2/16th of table, rebuild
- t->used_count_shrink_threshold = slot_count* 6/16; // if table is only 6/16th full, shrink
- #endif
- // Following statistics were measured on a Core i7-6700 @ 4.00Ghz, compiled with clang 7.0.1 -O2
- // Note that the larger tables have high variance as they were run fewer times
- // A1 A2 B1 C1
- // 0.10ms : 0.10ms : 0.10ms : 0.11ms : 2,000 inserts creating 2K table
- // 0.96ms : 0.95ms : 0.97ms : 1.04ms : 20,000 inserts creating 20K table
- // 14.48ms : 14.46ms : 10.63ms : 11.00ms : 200,000 inserts creating 200K table
- // 195.74ms : 196.35ms : 203.69ms : 214.92ms : 2,000,000 inserts creating 2M table
- // 2193.88ms : 2209.22ms : 2285.54ms : 2437.17ms : 20,000,000 inserts creating 20M table
- // 65.27ms : 53.77ms : 65.33ms : 65.47ms : 500,000 inserts & deletes in 2K table
- // 72.78ms : 62.45ms : 71.95ms : 72.85ms : 500,000 inserts & deletes in 20K table
- // 89.47ms : 77.72ms : 96.49ms : 96.75ms : 500,000 inserts & deletes in 200K table
- // 97.58ms : 98.14ms : 97.18ms : 97.53ms : 500,000 inserts & deletes in 2M table
- // 118.61ms : 119.62ms : 120.16ms : 118.86ms : 500,000 inserts & deletes in 20M table
- // 192.11ms : 194.39ms : 196.38ms : 195.73ms : 500,000 inserts & deletes in 200M table
-
- if (slot_count <= STBDS_BUCKET_LENGTH)
- t->used_count_shrink_threshold = 0;
- // to avoid infinite loop, we need to guarantee that at least one slot is empty and will terminate probes
- STBDS_ASSERT(t->used_count_threshold + t->tombstone_count_threshold < t->slot_count);
- STBDS_STATS(++stbds_hash_alloc);
- if (ot) {
- t->string = ot->string;
- // reuse old seed so we can reuse old hashes so below "copy out old data" doesn't do any hashing
- t->seed = ot->seed;
- } else {
- size_t a,b,temp;
- memset(&t->string, 0, sizeof(t->string));
- t->seed = stbds_hash_seed;
- // LCG
- // in 32-bit, a = 2147001325 b = 715136305
- // in 64-bit, a = 2862933555777941757 b = 3037000493
- stbds_load_32_or_64(a,temp, 2147001325, 0x27bb2ee6, 0x87b0b0fd);
- stbds_load_32_or_64(b,temp, 715136305, 0, 0xb504f32d);
- stbds_hash_seed = stbds_hash_seed * a + b;
- }
-
- {
- size_t i,j;
- for (i=0; i < slot_count >> STBDS_BUCKET_SHIFT; ++i) {
- stbds_hash_bucket *b = &t->storage[i];
- for (j=0; j < STBDS_BUCKET_LENGTH; ++j)
- b->hash[j] = STBDS_HASH_EMPTY;
- for (j=0; j < STBDS_BUCKET_LENGTH; ++j)
- b->index[j] = STBDS_INDEX_EMPTY;
- }
- }
-
- // copy out the old data, if any
- if (ot) {
- size_t i,j;
- t->used_count = ot->used_count;
- for (i=0; i < ot->slot_count >> STBDS_BUCKET_SHIFT; ++i) {
- stbds_hash_bucket *ob = &ot->storage[i];
- for (j=0; j < STBDS_BUCKET_LENGTH; ++j) {
- if (STBDS_INDEX_IN_USE(ob->index[j])) {
- size_t hash = ob->hash[j];
- size_t pos = stbds_probe_position(hash, t->slot_count, t->slot_count_log2);
- size_t step = STBDS_BUCKET_LENGTH;
- STBDS_STATS(++stbds_rehash_items);
- for (;;) {
- size_t limit,z;
- stbds_hash_bucket *bucket;
- bucket = &t->storage[pos >> STBDS_BUCKET_SHIFT];
- STBDS_STATS(++stbds_rehash_probes);
-
- for (z=pos & STBDS_BUCKET_MASK; z < STBDS_BUCKET_LENGTH; ++z) {
- if (bucket->hash[z] == 0) {
- bucket->hash[z] = hash;
- bucket->index[z] = ob->index[j];
- goto done;
- }
- }
-
- limit = pos & STBDS_BUCKET_MASK;
- for (z = 0; z < limit; ++z) {
- if (bucket->hash[z] == 0) {
- bucket->hash[z] = hash;
- bucket->index[z] = ob->index[j];
- goto done;
- }
- }
-
- pos += step; // quadratic probing
- step += STBDS_BUCKET_LENGTH;
- pos &= (t->slot_count-1);
- }
- }
- done:
- ;
- }
- }
- }
-
- return t;
-}
-
-#define STBDS_ROTATE_LEFT(val, n) (((val) << (n)) | ((val) >> (STBDS_SIZE_T_BITS - (n))))
-#define STBDS_ROTATE_RIGHT(val, n) (((val) >> (n)) | ((val) << (STBDS_SIZE_T_BITS - (n))))
-
-size_t stbds_hash_string(char *str, size_t seed)
-{
- size_t hash = seed;
- while (*str)
- hash = STBDS_ROTATE_LEFT(hash, 9) + (unsigned char) *str++;
-
- // Thomas Wang 64-to-32 bit mix function, hopefully also works in 32 bits
- hash ^= seed;
- hash = (~hash) + (hash << 18);
- hash ^= hash ^ STBDS_ROTATE_RIGHT(hash,31);
- hash = hash * 21;
- hash ^= hash ^ STBDS_ROTATE_RIGHT(hash,11);
- hash += (hash << 6);
- hash ^= STBDS_ROTATE_RIGHT(hash,22);
- return hash+seed;
-}
-
-#ifdef STBDS_SIPHASH_2_4
-#define STBDS_SIPHASH_C_ROUNDS 2
-#define STBDS_SIPHASH_D_ROUNDS 4
-typedef int STBDS_SIPHASH_2_4_can_only_be_used_in_64_bit_builds[sizeof(size_t) == 8 ? 1 : -1];
-#endif
-
-#ifndef STBDS_SIPHASH_C_ROUNDS
-#define STBDS_SIPHASH_C_ROUNDS 1
-#endif
-#ifndef STBDS_SIPHASH_D_ROUNDS
-#define STBDS_SIPHASH_D_ROUNDS 1
-#endif
-
-#ifdef _MSC_VER
-#pragma warning(push)
-#pragma warning(disable:4127) // conditional expression is constant, for do..while(0) and sizeof()==
-#endif
-
-static size_t stbds_siphash_bytes(void *p, size_t len, size_t seed)
-{
- unsigned char *d = (unsigned char *) p;
- size_t i,j;
- size_t v0,v1,v2,v3, data;
-
- // hash that works on 32- or 64-bit registers without knowing which we have
- // (computes different results on 32-bit and 64-bit platform)
- // derived from siphash, but on 32-bit platforms very different as it uses 4 32-bit state not 4 64-bit
- v0 = ((((size_t) 0x736f6d65 << 16) << 16) + 0x70736575) ^ seed;
- v1 = ((((size_t) 0x646f7261 << 16) << 16) + 0x6e646f6d) ^ ~seed;
- v2 = ((((size_t) 0x6c796765 << 16) << 16) + 0x6e657261) ^ seed;
- v3 = ((((size_t) 0x74656462 << 16) << 16) + 0x79746573) ^ ~seed;
-
- #ifdef STBDS_TEST_SIPHASH_2_4
- // hardcoded with key material in the siphash test vectors
- v0 ^= 0x0706050403020100ull ^ seed;
- v1 ^= 0x0f0e0d0c0b0a0908ull ^ ~seed;
- v2 ^= 0x0706050403020100ull ^ seed;
- v3 ^= 0x0f0e0d0c0b0a0908ull ^ ~seed;
- #endif
-
- #define STBDS_SIPROUND() \
- do { \
- v0 += v1; v1 = STBDS_ROTATE_LEFT(v1, 13); v1 ^= v0; v0 = STBDS_ROTATE_LEFT(v0,STBDS_SIZE_T_BITS/2); \
- v2 += v3; v3 = STBDS_ROTATE_LEFT(v3, 16); v3 ^= v2; \
- v2 += v1; v1 = STBDS_ROTATE_LEFT(v1, 17); v1 ^= v2; v2 = STBDS_ROTATE_LEFT(v2,STBDS_SIZE_T_BITS/2); \
- v0 += v3; v3 = STBDS_ROTATE_LEFT(v3, 21); v3 ^= v0; \
- } while (0)
-
- for (i=0; i+sizeof(size_t) <= len; i += sizeof(size_t), d += sizeof(size_t)) {
- data = d[0] | (d[1] << 8) | (d[2] << 16) | (d[3] << 24);
- data |= (size_t) (d[4] | (d[5] << 8) | (d[6] << 16) | (d[7] << 24)) << 16 << 16; // discarded if size_t == 4
-
- v3 ^= data;
- for (j=0; j < STBDS_SIPHASH_C_ROUNDS; ++j)
- STBDS_SIPROUND();
- v0 ^= data;
- }
- data = len << (STBDS_SIZE_T_BITS-8);
- switch (len - i) {
- case 7: data |= ((size_t) d[6] << 24) << 24; // fall through
- case 6: data |= ((size_t) d[5] << 20) << 20; // fall through
- case 5: data |= ((size_t) d[4] << 16) << 16; // fall through
- case 4: data |= (d[3] << 24); // fall through
- case 3: data |= (d[2] << 16); // fall through
- case 2: data |= (d[1] << 8); // fall through
- case 1: data |= d[0]; // fall through
- case 0: break;
- }
- v3 ^= data;
- for (j=0; j < STBDS_SIPHASH_C_ROUNDS; ++j)
- STBDS_SIPROUND();
- v0 ^= data;
- v2 ^= 0xff;
- for (j=0; j < STBDS_SIPHASH_D_ROUNDS; ++j)
- STBDS_SIPROUND();
-
-#ifdef STBDS_SIPHASH_2_4
- return v0^v1^v2^v3;
-#else
- return v1^v2^v3; // slightly stronger since v0^v3 in above cancels out final round operation? I tweeted at the authors of SipHash about this but they didn't reply
-#endif
-}
-
-size_t stbds_hash_bytes(void *p, size_t len, size_t seed)
-{
-#ifdef STBDS_SIPHASH_2_4
- return stbds_siphash_bytes(p,len,seed);
-#else
- unsigned char *d = (unsigned char *) p;
-
- if (len == 4) {
- unsigned int hash = d[0] | (d[1] << 8) | (d[2] << 16) | (d[3] << 24);
- #if 0
- // HASH32-A Bob Jenkin's hash function w/o large constants
- hash ^= seed;
- hash -= (hash<<6);
- hash ^= (hash>>17);
- hash -= (hash<<9);
- hash ^= seed;
- hash ^= (hash<<4);
- hash -= (hash<<3);
- hash ^= (hash<<10);
- hash ^= (hash>>15);
- #elif 1
- // HASH32-BB Bob Jenkin's presumably-accidental version of Thomas Wang hash with rotates turned into shifts.
- // Note that converting these back to rotates makes it run a lot slower, presumably due to collisions, so I'm
- // not really sure what's going on.
- hash ^= seed;
- hash = (hash ^ 61) ^ (hash >> 16);
- hash = hash + (hash << 3);
- hash = hash ^ (hash >> 4);
- hash = hash * 0x27d4eb2d;
- hash ^= seed;
- hash = hash ^ (hash >> 15);
- #else // HASH32-C - Murmur3
- hash ^= seed;
- hash *= 0xcc9e2d51;
- hash = (hash << 17) | (hash >> 15);
- hash *= 0x1b873593;
- hash ^= seed;
- hash = (hash << 19) | (hash >> 13);
- hash = hash*5 + 0xe6546b64;
- hash ^= hash >> 16;
- hash *= 0x85ebca6b;
- hash ^= seed;
- hash ^= hash >> 13;
- hash *= 0xc2b2ae35;
- hash ^= hash >> 16;
- #endif
- // Following statistics were measured on a Core i7-6700 @ 4.00Ghz, compiled with clang 7.0.1 -O2
- // Note that the larger tables have high variance as they were run fewer times
- // HASH32-A // HASH32-BB // HASH32-C
- // 0.10ms // 0.10ms // 0.10ms : 2,000 inserts creating 2K table
- // 0.96ms // 0.95ms // 0.99ms : 20,000 inserts creating 20K table
- // 14.69ms // 14.43ms // 14.97ms : 200,000 inserts creating 200K table
- // 199.99ms // 195.36ms // 202.05ms : 2,000,000 inserts creating 2M table
- // 2234.84ms // 2187.74ms // 2240.38ms : 20,000,000 inserts creating 20M table
- // 55.68ms // 53.72ms // 57.31ms : 500,000 inserts & deletes in 2K table
- // 63.43ms // 61.99ms // 65.73ms : 500,000 inserts & deletes in 20K table
- // 80.04ms // 77.96ms // 81.83ms : 500,000 inserts & deletes in 200K table
- // 100.42ms // 97.40ms // 102.39ms : 500,000 inserts & deletes in 2M table
- // 119.71ms // 120.59ms // 121.63ms : 500,000 inserts & deletes in 20M table
- // 185.28ms // 195.15ms // 187.74ms : 500,000 inserts & deletes in 200M table
- // 15.58ms // 14.79ms // 15.52ms : 200,000 inserts creating 200K table with varying key spacing
-
- return (((size_t) hash << 16 << 16) | hash) ^ seed;
- } else if (len == 8 && sizeof(size_t) == 8) {
- size_t hash = d[0] | (d[1] << 8) | (d[2] << 16) | (d[3] << 24);
- hash |= (size_t) (d[4] | (d[5] << 8) | (d[6] << 16) | (d[7] << 24)) << 16 << 16; // avoid warning if size_t == 4
- hash ^= seed;
- hash = (~hash) + (hash << 21);
- hash ^= STBDS_ROTATE_RIGHT(hash,24);
- hash *= 265;
- hash ^= STBDS_ROTATE_RIGHT(hash,14);
- hash ^= seed;
- hash *= 21;
- hash ^= STBDS_ROTATE_RIGHT(hash,28);
- hash += (hash << 31);
- hash = (~hash) + (hash << 18);
- return hash;
- } else {
- return stbds_siphash_bytes(p,len,seed);
- }
-#endif
-}
-#ifdef _MSC_VER
-#pragma warning(pop)
-#endif
-
-
-static int stbds_is_key_equal(void *a, size_t elemsize, void *key, size_t keysize, size_t keyoffset, int mode, size_t i)
-{
- if (mode >= STBDS_HM_STRING)
- return 0==strcmp((char *) key, * (char **) ((char *) a + elemsize*i + keyoffset));
- else
- return 0==memcmp(key, (char *) a + elemsize*i + keyoffset, keysize);
-}
-
-#define STBDS_HASH_TO_ARR(x,elemsize) ((char*) (x) - (elemsize))
-#define STBDS_ARR_TO_HASH(x,elemsize) ((char*) (x) + (elemsize))
-
-#define stbds_hash_table(a) ((stbds_hash_index *) stbds_header(a)->hash_table)
-
-void stbds_hmfree_func(void *a, size_t elemsize)
-{
- if (a == NULL) return;
- if (stbds_hash_table(a) != NULL) {
- if (stbds_hash_table(a)->string.mode == STBDS_SH_STRDUP) {
- size_t i;
- // skip 0th element, which is default
- for (i=1; i < stbds_header(a)->length; ++i)
- STBDS_FREE(NULL, *(char**) ((char *) a + elemsize*i));
- }
- stbds_strreset(&stbds_hash_table(a)->string);
- }
- STBDS_FREE(NULL, stbds_header(a)->hash_table);
- STBDS_FREE(NULL, stbds_header(a));
-}
-
-static ptrdiff_t stbds_hm_find_slot(void *a, size_t elemsize, void *key, size_t keysize, size_t keyoffset, int mode)
-{
- void *raw_a = STBDS_HASH_TO_ARR(a,elemsize);
- stbds_hash_index *table = stbds_hash_table(raw_a);
- size_t hash = mode >= STBDS_HM_STRING ? stbds_hash_string((char*)key,table->seed) : stbds_hash_bytes(key, keysize,table->seed);
- size_t step = STBDS_BUCKET_LENGTH;
- size_t limit,i;
- size_t pos;
- stbds_hash_bucket *bucket;
-
- if (hash < 2) hash += 2; // stored hash values are forbidden from being 0, so we can detect empty slots
-
- pos = stbds_probe_position(hash, table->slot_count, table->slot_count_log2);
-
- for (;;) {
- STBDS_STATS(++stbds_hash_probes);
- bucket = &table->storage[pos >> STBDS_BUCKET_SHIFT];
-
- // start searching from pos to end of bucket, this should help performance on small hash tables that fit in cache
- for (i=pos & STBDS_BUCKET_MASK; i < STBDS_BUCKET_LENGTH; ++i) {
- if (bucket->hash[i] == hash) {
- if (stbds_is_key_equal(a, elemsize, key, keysize, keyoffset, mode, bucket->index[i])) {
- return (pos & ~STBDS_BUCKET_MASK)+i;
- }
- } else if (bucket->hash[i] == STBDS_HASH_EMPTY) {
- return -1;
- }
- }
-
- // search from beginning of bucket to pos
- limit = pos & STBDS_BUCKET_MASK;
- for (i = 0; i < limit; ++i) {
- if (bucket->hash[i] == hash) {
- if (stbds_is_key_equal(a, elemsize, key, keysize, keyoffset, mode, bucket->index[i])) {
- return (pos & ~STBDS_BUCKET_MASK)+i;
- }
- } else if (bucket->hash[i] == STBDS_HASH_EMPTY) {
- return -1;
- }
- }
-
- // quadratic probing
- pos += step;
- step += STBDS_BUCKET_LENGTH;
- pos &= (table->slot_count-1);
- }
- /* NOTREACHED */
-}
-
-void * stbds_hmget_key_ts(void *a, size_t elemsize, void *key, size_t keysize, ptrdiff_t *temp, int mode)
-{
- size_t keyoffset = 0;
- if (a == NULL) {
- // make it non-empty so we can return a temp
- a = stbds_arrgrowf(0, elemsize, 0, 1);
- stbds_header(a)->length += 1;
- memset(a, 0, elemsize);
- *temp = STBDS_INDEX_EMPTY;
- // adjust a to point after the default element
- return STBDS_ARR_TO_HASH(a,elemsize);
- } else {
- stbds_hash_index *table;
- void *raw_a = STBDS_HASH_TO_ARR(a,elemsize);
- // adjust a to point to the default element
- table = (stbds_hash_index *) stbds_header(raw_a)->hash_table;
- if (table == 0) {
- *temp = -1;
- } else {
- ptrdiff_t slot = stbds_hm_find_slot(a, elemsize, key, keysize, keyoffset, mode);
- if (slot < 0) {
- *temp = STBDS_INDEX_EMPTY;
- } else {
- stbds_hash_bucket *b = &table->storage[slot >> STBDS_BUCKET_SHIFT];
- *temp = b->index[slot & STBDS_BUCKET_MASK];
- }
- }
- return a;
- }
-}
-
-void * stbds_hmget_key(void *a, size_t elemsize, void *key, size_t keysize, int mode)
-{
- ptrdiff_t temp;
- void *p = stbds_hmget_key_ts(a, elemsize, key, keysize, &temp, mode);
- stbds_temp(STBDS_HASH_TO_ARR(p,elemsize)) = temp;
- return p;
-}
-
-void * stbds_hmput_default(void *a, size_t elemsize)
-{
- // three cases:
- // a is NULL <- allocate
- // a has a hash table but no entries, because of shmode <- grow
- // a has entries <- do nothing
- if (a == NULL || stbds_header(STBDS_HASH_TO_ARR(a,elemsize))->length == 0) {
- a = stbds_arrgrowf(a ? STBDS_HASH_TO_ARR(a,elemsize) : NULL, elemsize, 0, 1);
- stbds_header(a)->length += 1;
- memset(a, 0, elemsize);
- a=STBDS_ARR_TO_HASH(a,elemsize);
- }
- return a;
-}
-
-static char *stbds_strdup(char *str);
-
-void *stbds_hmput_key(void *a, size_t elemsize, void *key, size_t keysize, int mode)
-{
- size_t keyoffset=0;
- void *raw_a;
- stbds_hash_index *table;
-
- if (a == NULL) {
- a = stbds_arrgrowf(0, elemsize, 0, 1);
- memset(a, 0, elemsize);
- stbds_header(a)->length += 1;
- // adjust a to point AFTER the default element
- a = STBDS_ARR_TO_HASH(a,elemsize);
- }
-
- // adjust a to point to the default element
- raw_a = a;
- a = STBDS_HASH_TO_ARR(a,elemsize);
-
- table = (stbds_hash_index *) stbds_header(a)->hash_table;
-
- if (table == NULL || table->used_count >= table->used_count_threshold) {
- stbds_hash_index *nt;
- size_t slot_count;
-
- slot_count = (table == NULL) ? STBDS_BUCKET_LENGTH : table->slot_count*2;
- nt = stbds_make_hash_index(slot_count, table);
- if (table)
- STBDS_FREE(NULL, table);
- else
- nt->string.mode = mode >= STBDS_HM_STRING ? STBDS_SH_DEFAULT : 0;
- stbds_header(a)->hash_table = table = nt;
- STBDS_STATS(++stbds_hash_grow);
- }
-
- // we iterate hash table explicitly because we want to track if we saw a tombstone
- {
- size_t hash = mode >= STBDS_HM_STRING ? stbds_hash_string((char*)key,table->seed) : stbds_hash_bytes(key, keysize,table->seed);
- size_t step = STBDS_BUCKET_LENGTH;
- size_t pos;
- ptrdiff_t tombstone = -1;
- stbds_hash_bucket *bucket;
-
- // stored hash values are forbidden from being 0, so we can detect empty slots to early out quickly
- if (hash < 2) hash += 2;
-
- pos = stbds_probe_position(hash, table->slot_count, table->slot_count_log2);
-
- for (;;) {
- size_t limit, i;
- STBDS_STATS(++stbds_hash_probes);
- bucket = &table->storage[pos >> STBDS_BUCKET_SHIFT];
-
- // start searching from pos to end of bucket
- for (i=pos & STBDS_BUCKET_MASK; i < STBDS_BUCKET_LENGTH; ++i) {
- if (bucket->hash[i] == hash) {
- if (stbds_is_key_equal(raw_a, elemsize, key, keysize, keyoffset, mode, bucket->index[i])) {
- stbds_temp(a) = bucket->index[i];
- if (mode >= STBDS_HM_STRING)
- stbds_temp_key(a) = * (char **) ((char *) raw_a + elemsize*bucket->index[i] + keyoffset);
- return STBDS_ARR_TO_HASH(a,elemsize);
- }
- } else if (bucket->hash[i] == 0) {
- pos = (pos & ~STBDS_BUCKET_MASK) + i;
- goto found_empty_slot;
- } else if (tombstone < 0) {
- if (bucket->index[i] == STBDS_INDEX_DELETED)
- tombstone = (ptrdiff_t) ((pos & ~STBDS_BUCKET_MASK) + i);
- }
- }
-
- // search from beginning of bucket to pos
- limit = pos & STBDS_BUCKET_MASK;
- for (i = 0; i < limit; ++i) {
- if (bucket->hash[i] == hash) {
- if (stbds_is_key_equal(raw_a, elemsize, key, keysize, keyoffset, mode, bucket->index[i])) {
- stbds_temp(a) = bucket->index[i];
- return STBDS_ARR_TO_HASH(a,elemsize);
- }
- } else if (bucket->hash[i] == 0) {
- pos = (pos & ~STBDS_BUCKET_MASK) + i;
- goto found_empty_slot;
- } else if (tombstone < 0) {
- if (bucket->index[i] == STBDS_INDEX_DELETED)
- tombstone = (ptrdiff_t) ((pos & ~STBDS_BUCKET_MASK) + i);
- }
- }
-
- // quadratic probing
- pos += step;
- step += STBDS_BUCKET_LENGTH;
- pos &= (table->slot_count-1);
- }
- found_empty_slot:
- if (tombstone >= 0) {
- pos = tombstone;
- --table->tombstone_count;
- }
- ++table->used_count;
-
- {
- ptrdiff_t i = (ptrdiff_t) stbds_arrlen(a);
- // we want to do stbds_arraddn(1), but we can't use the macros since we don't have something of the right type
- if ((size_t) i+1 > stbds_arrcap(a))
- *(void **) &a = stbds_arrgrowf(a, elemsize, 1, 0);
- raw_a = STBDS_ARR_TO_HASH(a,elemsize);
-
- STBDS_ASSERT((size_t) i+1 <= stbds_arrcap(a));
- stbds_header(a)->length = i+1;
- bucket = &table->storage[pos >> STBDS_BUCKET_SHIFT];
- bucket->hash[pos & STBDS_BUCKET_MASK] = hash;
- bucket->index[pos & STBDS_BUCKET_MASK] = i-1;
- stbds_temp(a) = i-1;
-
- switch (table->string.mode) {
- case STBDS_SH_STRDUP: stbds_temp_key(a) = *(char **) ((char *) a + elemsize*i) = stbds_strdup((char*) key); break;
- case STBDS_SH_ARENA: stbds_temp_key(a) = *(char **) ((char *) a + elemsize*i) = stbds_stralloc(&table->string, (char*)key); break;
- case STBDS_SH_DEFAULT: stbds_temp_key(a) = *(char **) ((char *) a + elemsize*i) = (char *) key; break;
- default: memcpy((char *) a + elemsize*i, key, keysize); break;
- }
- }
- return STBDS_ARR_TO_HASH(a,elemsize);
- }
-}
-
-void * stbds_shmode_func(size_t elemsize, int mode)
-{
- void *a = stbds_arrgrowf(0, elemsize, 0, 1);
- stbds_hash_index *h;
- memset(a, 0, elemsize);
- stbds_header(a)->length = 1;
- stbds_header(a)->hash_table = h = (stbds_hash_index *) stbds_make_hash_index(STBDS_BUCKET_LENGTH, NULL);
- h->string.mode = (unsigned char) mode;
- return STBDS_ARR_TO_HASH(a,elemsize);
-}
-
-void * stbds_hmdel_key(void *a, size_t elemsize, void *key, size_t keysize, size_t keyoffset, int mode)
-{
- if (a == NULL) {
- return 0;
- } else {
- stbds_hash_index *table;
- void *raw_a = STBDS_HASH_TO_ARR(a,elemsize);
- table = (stbds_hash_index *) stbds_header(raw_a)->hash_table;
- stbds_temp(raw_a) = 0;
- if (table == 0) {
- return a;
- } else {
- ptrdiff_t slot;
- slot = stbds_hm_find_slot(a, elemsize, key, keysize, keyoffset, mode);
- if (slot < 0)
- return a;
- else {
- stbds_hash_bucket *b = &table->storage[slot >> STBDS_BUCKET_SHIFT];
- int i = slot & STBDS_BUCKET_MASK;
- ptrdiff_t old_index = b->index[i];
- ptrdiff_t final_index = (ptrdiff_t) stbds_arrlen(raw_a)-1-1; // minus one for the raw_a vs a, and minus one for 'last'
- STBDS_ASSERT(slot < (ptrdiff_t) table->slot_count);
- --table->used_count;
- ++table->tombstone_count;
- stbds_temp(raw_a) = 1;
- STBDS_ASSERT(table->used_count >= 0);
- //STBDS_ASSERT(table->tombstone_count < table->slot_count/4);
- b->hash[i] = STBDS_HASH_DELETED;
- b->index[i] = STBDS_INDEX_DELETED;
-
- if (mode == STBDS_HM_STRING && table->string.mode == STBDS_SH_STRDUP)
- STBDS_FREE(NULL, *(char**) ((char *) a+elemsize*old_index));
-
- // if indices are the same, memcpy is a no-op, but back-pointer-fixup will fail, so skip
- if (old_index != final_index) {
- // swap delete
- memmove((char*) a + elemsize*old_index, (char*) a + elemsize*final_index, elemsize);
-
- // now find the slot for the last element
- if (mode == STBDS_HM_STRING)
- slot = stbds_hm_find_slot(a, elemsize, *(char**) ((char *) a+elemsize*old_index + keyoffset), keysize, keyoffset, mode);
- else
- slot = stbds_hm_find_slot(a, elemsize, (char* ) a+elemsize*old_index + keyoffset, keysize, keyoffset, mode);
- STBDS_ASSERT(slot >= 0);
- b = &table->storage[slot >> STBDS_BUCKET_SHIFT];
- i = slot & STBDS_BUCKET_MASK;
- STBDS_ASSERT(b->index[i] == final_index);
- b->index[i] = old_index;
- }
- stbds_header(raw_a)->length -= 1;
-
- if (table->used_count < table->used_count_shrink_threshold && table->slot_count > STBDS_BUCKET_LENGTH) {
- stbds_header(raw_a)->hash_table = stbds_make_hash_index(table->slot_count>>1, table);
- STBDS_FREE(NULL, table);
- STBDS_STATS(++stbds_hash_shrink);
- } else if (table->tombstone_count > table->tombstone_count_threshold) {
- stbds_header(raw_a)->hash_table = stbds_make_hash_index(table->slot_count , table);
- STBDS_FREE(NULL, table);
- STBDS_STATS(++stbds_hash_rebuild);
- }
-
- return a;
- }
- }
- }
- /* NOTREACHED */
-}
-
-static char *stbds_strdup(char *str)
-{
- // to keep replaceable allocator simple, we don't want to use strdup.
- // rolling our own also avoids problem of strdup vs _strdup
- size_t len = strlen(str)+1;
- char *p = (char*) STBDS_REALLOC(NULL, 0, len);
- memmove(p, str, len);
- return p;
-}
-
-#ifndef STBDS_STRING_ARENA_BLOCKSIZE_MIN
-#define STBDS_STRING_ARENA_BLOCKSIZE_MIN 512u
-#endif
-#ifndef STBDS_STRING_ARENA_BLOCKSIZE_MAX
-#define STBDS_STRING_ARENA_BLOCKSIZE_MAX (1u<<20)
-#endif
-
-char *stbds_stralloc(stbds_string_arena *a, char *str)
-{
- char *p;
- size_t len = strlen(str)+1;
- if (len > a->remaining) {
- // compute the next blocksize
- size_t blocksize = a->block;
-
- // size is 512, 512, 1024, 1024, 2048, 2048, 4096, 4096, etc., so that
- // there are log(SIZE) allocations to free when we destroy the table
- blocksize = (size_t) (STBDS_STRING_ARENA_BLOCKSIZE_MIN) << (blocksize>>1);
-
- // if size is under 1M, advance to next blocktype
- if (blocksize < (size_t)(STBDS_STRING_ARENA_BLOCKSIZE_MAX))
- ++a->block;
-
- if (len > blocksize) {
- // if string is larger than blocksize, then just allocate the full size.
- // note that we still advance string_block so block size will continue
- // increasing, so e.g. if somebody only calls this with 1000-long strings,
- // eventually the arena will start doubling and handling those as well
- stbds_string_block *sb = (stbds_string_block *) STBDS_REALLOC(NULL, 0, sizeof(*sb)-8 + len);
- memmove(sb->storage, str, len);
- if (a->storage) {
- // insert it after the first element, so that we don't waste the space there
- sb->next = a->storage->next;
- a->storage->next = sb;
- } else {
- sb->next = 0;
- a->storage = sb;
- a->remaining = 0; // this is redundant, but good for clarity
- }
- return sb->storage;
- } else {
- stbds_string_block *sb = (stbds_string_block *) STBDS_REALLOC(NULL, 0, sizeof(*sb)-8 + blocksize);
- sb->next = a->storage;
- a->storage = sb;
- a->remaining = blocksize;
- }
- }
-
- STBDS_ASSERT(len <= a->remaining);
- p = a->storage->storage + a->remaining - len;
- a->remaining -= len;
- memmove(p, str, len);
- return p;
-}
-
-void stbds_strreset(stbds_string_arena *a)
-{
- stbds_string_block *x,*y;
- x = a->storage;
- while (x) {
- y = x->next;
- STBDS_FREE(NULL, x);
- x = y;
- }
- memset(a, 0, sizeof(*a));
-}
-
-#endif
-
-//////////////////////////////////////////////////////////////////////////////
-//
-// UNIT TESTS
-//
-
-#ifdef STBDS_UNIT_TESTS
-#include <stdio.h>
-#ifdef STBDS_ASSERT_WAS_UNDEFINED
-#undef STBDS_ASSERT
-#endif
-#ifndef STBDS_ASSERT
-#define STBDS_ASSERT assert
-#include <assert.h>
-#endif
-
-typedef struct { int key,b,c,d; } stbds_struct;
-typedef struct { int key[2],b,c,d; } stbds_struct2;
-
-static char buffer[256];
-char *strkey(int n)
-{
-#if defined(_WIN32) && defined(__STDC_WANT_SECURE_LIB__)
- sprintf_s(buffer, sizeof(buffer), "test_%d", n);
-#else
- sprintf(buffer, "test_%d", n);
-#endif
- return buffer;
-}
-
-void stbds_unit_tests(void)
-{
-#if defined(_MSC_VER) && _MSC_VER <= 1200 && defined(__cplusplus)
- // VC6 C++ doesn't like the template<> trick on unnamed structures, so do nothing!
- STBDS_ASSERT(0);
-#else
- const int testsize = 100000;
- const int testsize2 = testsize/20;
- int *arr=NULL;
- struct { int key; int value; } *intmap = NULL;
- struct { char *key; int value; } *strmap = NULL, s;
- struct { stbds_struct key; int value; } *map = NULL;
- stbds_struct *map2 = NULL;
- stbds_struct2 *map3 = NULL;
- stbds_string_arena sa = { 0 };
- int key3[2] = { 1,2 };
- ptrdiff_t temp;
-
- int i,j;
-
- STBDS_ASSERT(arrlen(arr)==0);
- for (i=0; i < 20000; i += 50) {
- for (j=0; j < i; ++j)
- arrpush(arr,j);
- arrfree(arr);
- }
-
- for (i=0; i < 4; ++i) {
- arrpush(arr,1); arrpush(arr,2); arrpush(arr,3); arrpush(arr,4);
- arrdel(arr,i);
- arrfree(arr);
- arrpush(arr,1); arrpush(arr,2); arrpush(arr,3); arrpush(arr,4);
- arrdelswap(arr,i);
- arrfree(arr);
- }
-
- for (i=0; i < 5; ++i) {
- arrpush(arr,1); arrpush(arr,2); arrpush(arr,3); arrpush(arr,4);
- stbds_arrins(arr,i,5);
- STBDS_ASSERT(arr[i] == 5);
- if (i < 4)
- STBDS_ASSERT(arr[4] == 4);
- arrfree(arr);
- }
-
- i = 1;
- STBDS_ASSERT(hmgeti(intmap,i) == -1);
- hmdefault(intmap, -2);
- STBDS_ASSERT(hmgeti(intmap, i) == -1);
- STBDS_ASSERT(hmget (intmap, i) == -2);
- for (i=0; i < testsize; i+=2)
- hmput(intmap, i, i*5);
- for (i=0; i < testsize; i+=1) {
- if (i & 1) STBDS_ASSERT(hmget(intmap, i) == -2 );
- else STBDS_ASSERT(hmget(intmap, i) == i*5);
- if (i & 1) STBDS_ASSERT(hmget_ts(intmap, i, temp) == -2 );
- else STBDS_ASSERT(hmget_ts(intmap, i, temp) == i*5);
- }
- for (i=0; i < testsize; i+=2)
- hmput(intmap, i, i*3);
- for (i=0; i < testsize; i+=1)
- if (i & 1) STBDS_ASSERT(hmget(intmap, i) == -2 );
- else STBDS_ASSERT(hmget(intmap, i) == i*3);
- for (i=2; i < testsize; i+=4)
- hmdel(intmap, i); // delete half the entries
- for (i=0; i < testsize; i+=1)
- if (i & 3) STBDS_ASSERT(hmget(intmap, i) == -2 );
- else STBDS_ASSERT(hmget(intmap, i) == i*3);
- for (i=0; i < testsize; i+=1)
- hmdel(intmap, i); // delete the rest of the entries
- for (i=0; i < testsize; i+=1)
- STBDS_ASSERT(hmget(intmap, i) == -2 );
- hmfree(intmap);
- for (i=0; i < testsize; i+=2)
- hmput(intmap, i, i*3);
- hmfree(intmap);
-
- #if defined(__clang__) || defined(__GNUC__)
- #ifndef __cplusplus
- intmap = NULL;
- hmput(intmap, 15, 7);
- hmput(intmap, 11, 3);
- hmput(intmap, 9, 5);
- STBDS_ASSERT(hmget(intmap, 9) == 5);
- STBDS_ASSERT(hmget(intmap, 11) == 3);
- STBDS_ASSERT(hmget(intmap, 15) == 7);
- #endif
- #endif
-
- for (i=0; i < testsize; ++i)
- stralloc(&sa, strkey(i));
- strreset(&sa);
-
- {
- s.key = "a", s.value = 1;
- shputs(strmap, s);
- STBDS_ASSERT(*strmap[0].key == 'a');
- STBDS_ASSERT(strmap[0].key == s.key);
- STBDS_ASSERT(strmap[0].value == s.value);
- shfree(strmap);
- }
-
- {
- s.key = "a", s.value = 1;
- sh_new_strdup(strmap);
- shputs(strmap, s);
- STBDS_ASSERT(*strmap[0].key == 'a');
- STBDS_ASSERT(strmap[0].key != s.key);
- STBDS_ASSERT(strmap[0].value == s.value);
- shfree(strmap);
- }
-
- {
- s.key = "a", s.value = 1;
- sh_new_arena(strmap);
- shputs(strmap, s);
- STBDS_ASSERT(*strmap[0].key == 'a');
- STBDS_ASSERT(strmap[0].key != s.key);
- STBDS_ASSERT(strmap[0].value == s.value);
- shfree(strmap);
- }
-
- for (j=0; j < 2; ++j) {
- STBDS_ASSERT(shgeti(strmap,"foo") == -1);
- if (j == 0)
- sh_new_strdup(strmap);
- else
- sh_new_arena(strmap);
- STBDS_ASSERT(shgeti(strmap,"foo") == -1);
- shdefault(strmap, -2);
- STBDS_ASSERT(shgeti(strmap,"foo") == -1);
- for (i=0; i < testsize; i+=2)
- shput(strmap, strkey(i), i*3);
- for (i=0; i < testsize; i+=1)
- if (i & 1) STBDS_ASSERT(shget(strmap, strkey(i)) == -2 );
- else STBDS_ASSERT(shget(strmap, strkey(i)) == i*3);
- for (i=2; i < testsize; i+=4)
- shdel(strmap, strkey(i)); // delete half the entries
- for (i=0; i < testsize; i+=1)
- if (i & 3) STBDS_ASSERT(shget(strmap, strkey(i)) == -2 );
- else STBDS_ASSERT(shget(strmap, strkey(i)) == i*3);
- for (i=0; i < testsize; i+=1)
- shdel(strmap, strkey(i)); // delete the rest of the entries
- for (i=0; i < testsize; i+=1)
- STBDS_ASSERT(shget(strmap, strkey(i)) == -2 );
- shfree(strmap);
- }
-
- {
- struct { char *key; char value; } *hash = NULL;
- char name[4] = "jen";
- shput(hash, "bob" , 'h');
- shput(hash, "sally" , 'e');
- shput(hash, "fred" , 'l');
- shput(hash, "jen" , 'x');
- shput(hash, "doug" , 'o');
-
- shput(hash, name , 'l');
- shfree(hash);
- }
-
- for (i=0; i < testsize; i += 2) {
- stbds_struct s = { i,i*2,i*3,i*4 };
- hmput(map, s, i*5);
- }
-
- for (i=0; i < testsize; i += 1) {
- stbds_struct s = { i,i*2,i*3 ,i*4 };
- stbds_struct t = { i,i*2,i*3+1,i*4 };
- if (i & 1) STBDS_ASSERT(hmget(map, s) == 0);
- else STBDS_ASSERT(hmget(map, s) == i*5);
- if (i & 1) STBDS_ASSERT(hmget_ts(map, s, temp) == 0);
- else STBDS_ASSERT(hmget_ts(map, s, temp) == i*5);
- //STBDS_ASSERT(hmget(map, t.key) == 0);
- }
-
- for (i=0; i < testsize; i += 2) {
- stbds_struct s = { i,i*2,i*3,i*4 };
- hmputs(map2, s);
- }
- hmfree(map);
-
- for (i=0; i < testsize; i += 1) {
- stbds_struct s = { i,i*2,i*3,i*4 };
- stbds_struct t = { i,i*2,i*3+1,i*4 };
- if (i & 1) STBDS_ASSERT(hmgets(map2, s.key).d == 0);
- else STBDS_ASSERT(hmgets(map2, s.key).d == i*4);
- //STBDS_ASSERT(hmgetp(map2, t.key) == 0);
- }
- hmfree(map2);
-
- for (i=0; i < testsize; i += 2) {
- stbds_struct2 s = { { i,i*2 }, i*3,i*4, i*5 };
- hmputs(map3, s);
- }
- for (i=0; i < testsize; i += 1) {
- stbds_struct2 s = { { i,i*2}, i*3, i*4, i*5 };
- stbds_struct2 t = { { i,i*2}, i*3+1, i*4, i*5 };
- if (i & 1) STBDS_ASSERT(hmgets(map3, s.key).d == 0);
- else STBDS_ASSERT(hmgets(map3, s.key).d == i*5);
- //STBDS_ASSERT(hmgetp(map3, t.key) == 0);
- }
-#endif
-}
-#endif
-
-
-/*
-------------------------------------------------------------------------------
-This software is available under 2 licenses -- choose whichever you prefer.
-------------------------------------------------------------------------------
-ALTERNATIVE A - MIT License
-Copyright (c) 2019 Sean Barrett
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
-of the Software, and to permit persons to whom the Software is furnished to do
-so, subject to the following conditions:
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
-------------------------------------------------------------------------------
-ALTERNATIVE B - Public Domain (www.unlicense.org)
-This is free and unencumbered software released into the public domain.
-Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
-software, either in source code form or as a compiled binary, for any purpose,
-commercial or non-commercial, and by any means.
-In jurisdictions that recognize copyright laws, the author or authors of this
-software dedicate any and all copyright interest in the software to the public
-domain. We make this dedication for the benefit of the public at large and to
-the detriment of our heirs and successors. We intend this dedication to be an
-overt act of relinquishment in perpetuity of all present and future rights to
-this software under copyright law.
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
-ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-------------------------------------------------------------------------------
-*/