summaryrefslogtreecommitdiffstats
path: root/kpdf/xpdf/xpdf/CharCodeToUnicode.cc
diff options
context:
space:
mode:
Diffstat (limited to 'kpdf/xpdf/xpdf/CharCodeToUnicode.cc')
-rw-r--r--kpdf/xpdf/xpdf/CharCodeToUnicode.cc540
1 files changed, 0 insertions, 540 deletions
diff --git a/kpdf/xpdf/xpdf/CharCodeToUnicode.cc b/kpdf/xpdf/xpdf/CharCodeToUnicode.cc
deleted file mode 100644
index 3702a16d..00000000
--- a/kpdf/xpdf/xpdf/CharCodeToUnicode.cc
+++ /dev/null
@@ -1,540 +0,0 @@
-//========================================================================
-//
-// CharCodeToUnicode.cc
-//
-// Copyright 2001-2003 Glyph & Cog, LLC
-//
-//========================================================================
-
-#include <aconf.h>
-
-#ifdef USE_GCC_PRAGMAS
-#pragma implementation
-#endif
-
-#include <stdio.h>
-#include <string.h>
-#include "gmem.h"
-#include "gfile.h"
-#include "GString.h"
-#include "Error.h"
-#include "GlobalParams.h"
-#include "PSTokenizer.h"
-#include "CharCodeToUnicode.h"
-
-//------------------------------------------------------------------------
-
-#define maxUnicodeString 8
-
-struct CharCodeToUnicodeString {
- CharCode c;
- Unicode u[maxUnicodeString];
- int len;
-};
-
-//------------------------------------------------------------------------
-
-static int getCharFromString(void *data) {
- char *p;
- int c;
-
- p = *(char **)data;
- if (*p) {
- c = *p++;
- *(char **)data = p;
- } else {
- c = EOF;
- }
- return c;
-}
-
-static int getCharFromFile(void *data) {
- return fgetc((FILE *)data);
-}
-
-//------------------------------------------------------------------------
-
-CharCodeToUnicode *CharCodeToUnicode::parseCIDToUnicode(GString *fileName,
- GString *collection) {
- FILE *f;
- Unicode *mapA;
- CharCode size, mapLenA;
- char buf[64];
- Unicode u;
- CharCodeToUnicode *ctu;
-
- if (!(f = fopen(fileName->getCString(), "r"))) {
- error(-1, "Couldn't open cidToUnicode file '%s'",
- fileName->getCString());
- return NULL;
- }
-
- size = 32768;
- mapA = (Unicode *)gmallocn(size, sizeof(Unicode));
- mapLenA = 0;
-
- while (getLine(buf, sizeof(buf), f)) {
- if (mapLenA == size) {
- size *= 2;
- mapA = (Unicode *)greallocn(mapA, size, sizeof(Unicode));
- }
- if (sscanf(buf, "%x", &u) == 1) {
- mapA[mapLenA] = u;
- } else {
- error(-1, "Bad line (%d) in cidToUnicode file '%s'",
- (int)(mapLenA + 1), fileName->getCString());
- mapA[mapLenA] = 0;
- }
- ++mapLenA;
- }
- fclose(f);
-
- ctu = new CharCodeToUnicode(collection->copy(), mapA, mapLenA, gTrue,
- NULL, 0, 0);
- gfree(mapA);
- return ctu;
-}
-
-CharCodeToUnicode *CharCodeToUnicode::parseUnicodeToUnicode(
- GString *fileName) {
- FILE *f;
- Unicode *mapA;
- CharCodeToUnicodeString *sMapA;
- CharCode size, oldSize, len, sMapSizeA, sMapLenA;
- char buf[256];
- char *tok;
- Unicode u0;
- Unicode uBuf[maxUnicodeString];
- CharCodeToUnicode *ctu;
- int line, n, i;
-
- if (!(f = fopen(fileName->getCString(), "r"))) {
- error(-1, "Couldn't open unicodeToUnicode file '%s'",
- fileName->getCString());
- return NULL;
- }
-
- size = 4096;
- mapA = (Unicode *)gmallocn(size, sizeof(Unicode));
- memset(mapA, 0, size * sizeof(Unicode));
- len = 0;
- sMapA = NULL;
- sMapSizeA = sMapLenA = 0;
-
- line = 0;
- while (getLine(buf, sizeof(buf), f)) {
- ++line;
- if (!(tok = strtok(buf, " \t\r\n")) ||
- sscanf(tok, "%x", &u0) != 1) {
- error(-1, "Bad line (%d) in unicodeToUnicode file '%s'",
- line, fileName->getCString());
- continue;
- }
- n = 0;
- while (n < maxUnicodeString) {
- if (!(tok = strtok(NULL, " \t\r\n"))) {
- break;
- }
- if (sscanf(tok, "%x", &uBuf[n]) != 1) {
- error(-1, "Bad line (%d) in unicodeToUnicode file '%s'",
- line, fileName->getCString());
- break;
- }
- ++n;
- }
- if (n < 1) {
- error(-1, "Bad line (%d) in unicodeToUnicode file '%s'",
- line, fileName->getCString());
- continue;
- }
- if (u0 >= size) {
- oldSize = size;
- while (u0 >= size) {
- size *= 2;
- }
- mapA = (Unicode *)greallocn(mapA, size, sizeof(Unicode));
- memset(mapA + oldSize, 0, (size - oldSize) * sizeof(Unicode));
- }
- if (n == 1) {
- mapA[u0] = uBuf[0];
- } else {
- mapA[u0] = 0;
- if (sMapLenA == sMapSizeA) {
- sMapSizeA += 16;
- sMapA = (CharCodeToUnicodeString *)
- greallocn(sMapA, sMapSizeA, sizeof(CharCodeToUnicodeString));
- }
- sMapA[sMapLenA].c = u0;
- for (i = 0; i < n; ++i) {
- sMapA[sMapLenA].u[i] = uBuf[i];
- }
- sMapA[sMapLenA].len = n;
- ++sMapLenA;
- }
- if (u0 >= len) {
- len = u0 + 1;
- }
- }
- fclose(f);
-
- ctu = new CharCodeToUnicode(fileName->copy(), mapA, len, gTrue,
- sMapA, sMapLenA, sMapSizeA);
- gfree(mapA);
- return ctu;
-}
-
-CharCodeToUnicode *CharCodeToUnicode::make8BitToUnicode(Unicode *toUnicode) {
- return new CharCodeToUnicode(NULL, toUnicode, 256, gTrue, NULL, 0, 0);
-}
-
-CharCodeToUnicode *CharCodeToUnicode::parseCMap(GString *buf, int nBits) {
- CharCodeToUnicode *ctu;
- char *p;
-
- ctu = new CharCodeToUnicode(NULL);
- p = buf->getCString();
- ctu->parseCMap1(&getCharFromString, &p, nBits);
- return ctu;
-}
-
-void CharCodeToUnicode::mergeCMap(GString *buf, int nBits) {
- char *p;
-
- p = buf->getCString();
- parseCMap1(&getCharFromString, &p, nBits);
-}
-
-void CharCodeToUnicode::parseCMap1(int (*getCharFunc)(void *), void *data,
- int nBits) {
- PSTokenizer *pst;
- char tok1[256], tok2[256], tok3[256];
- int nDigits, n1, n2, n3;
- CharCode i;
- CharCode code1, code2;
- GString *name;
- FILE *f;
-
- nDigits = nBits / 4;
- pst = new PSTokenizer(getCharFunc, data);
- pst->getToken(tok1, sizeof(tok1), &n1);
- while (pst->getToken(tok2, sizeof(tok2), &n2)) {
- if (!strcmp(tok2, "usecmap")) {
- if (tok1[0] == '/') {
- name = new GString(tok1 + 1);
- if ((f = globalParams->findToUnicodeFile(name))) {
- parseCMap1(&getCharFromFile, f, nBits);
- fclose(f);
- } else {
- error(-1, "Couldn't find ToUnicode CMap file for '%s'",
- name->getCString());
- }
- delete name;
- }
- pst->getToken(tok1, sizeof(tok1), &n1);
- } else if (!strcmp(tok2, "beginbfchar")) {
- while (pst->getToken(tok1, sizeof(tok1), &n1)) {
- if (!strcmp(tok1, "endbfchar")) {
- break;
- }
- if (!pst->getToken(tok2, sizeof(tok2), &n2) ||
- !strcmp(tok2, "endbfchar")) {
- error(-1, "Illegal entry in bfchar block in ToUnicode CMap");
- break;
- }
- if (!(n1 == 2 + nDigits && tok1[0] == '<' && tok1[n1 - 1] == '>' &&
- tok2[0] == '<' && tok2[n2 - 1] == '>')) {
- error(-1, "Illegal entry in bfchar block in ToUnicode CMap");
- continue;
- }
- tok1[n1 - 1] = tok2[n2 - 1] = '\0';
- if (sscanf(tok1 + 1, "%x", &code1) != 1) {
- error(-1, "Illegal entry in bfchar block in ToUnicode CMap");
- continue;
- }
- addMapping(code1, tok2 + 1, n2 - 2, 0);
- }
- pst->getToken(tok1, sizeof(tok1), &n1);
- } else if (!strcmp(tok2, "beginbfrange")) {
- while (pst->getToken(tok1, sizeof(tok1), &n1)) {
- if (!strcmp(tok1, "endbfrange")) {
- break;
- }
- if (!pst->getToken(tok2, sizeof(tok2), &n2) ||
- !strcmp(tok2, "endbfrange") ||
- !pst->getToken(tok3, sizeof(tok3), &n3) ||
- !strcmp(tok3, "endbfrange")) {
- error(-1, "Illegal entry in bfrange block in ToUnicode CMap");
- break;
- }
- if (!(n1 == 2 + nDigits && tok1[0] == '<' && tok1[n1 - 1] == '>' &&
- n2 == 2 + nDigits && tok2[0] == '<' && tok2[n2 - 1] == '>')) {
- error(-1, "Illegal entry in bfrange block in ToUnicode CMap");
- continue;
- }
- tok1[n1 - 1] = tok2[n2 - 1] = '\0';
- if (sscanf(tok1 + 1, "%x", &code1) != 1 ||
- sscanf(tok2 + 1, "%x", &code2) != 1) {
- error(-1, "Illegal entry in bfrange block in ToUnicode CMap");
- continue;
- }
- if (!strcmp(tok3, "[")) {
- i = 0;
- while (pst->getToken(tok1, sizeof(tok1), &n1) &&
- code1 + i <= code2) {
- if (!strcmp(tok1, "]")) {
- break;
- }
- if (tok1[0] == '<' && tok1[n1 - 1] == '>') {
- tok1[n1 - 1] = '\0';
- addMapping(code1 + i, tok1 + 1, n1 - 2, 0);
- } else {
- error(-1, "Illegal entry in bfrange block in ToUnicode CMap");
- }
- ++i;
- }
- } else if (tok3[0] == '<' && tok3[n3 - 1] == '>') {
- tok3[n3 - 1] = '\0';
- for (i = 0; code1 <= code2; ++code1, ++i) {
- addMapping(code1, tok3 + 1, n3 - 2, i);
- }
-
- } else {
- error(-1, "Illegal entry in bfrange block in ToUnicode CMap");
- }
- }
- pst->getToken(tok1, sizeof(tok1), &n1);
- } else {
- strcpy(tok1, tok2);
- }
- }
- delete pst;
-}
-
-void CharCodeToUnicode::addMapping(CharCode code, char *uStr, int n,
- int offset) {
- CharCode oldLen, i;
- Unicode u;
- char uHex[5];
- int j;
-
- if (code >= mapLen) {
- oldLen = mapLen;
- mapLen = (code + 256) & ~255;
- map = (Unicode *)greallocn(map, mapLen, sizeof(Unicode));
- for (i = oldLen; i < mapLen; ++i) {
- map[i] = 0;
- }
- }
- if (n <= 4) {
- if (sscanf(uStr, "%x", &u) != 1) {
- error(-1, "Illegal entry in ToUnicode CMap");
- return;
- }
- map[code] = u + offset;
- } else {
- if (sMapLen >= sMapSize) {
- sMapSize = sMapSize + 16;
- sMap = (CharCodeToUnicodeString *)
- greallocn(sMap, sMapSize, sizeof(CharCodeToUnicodeString));
- }
- map[code] = 0;
- sMap[sMapLen].c = code;
- sMap[sMapLen].len = n / 4;
- for (j = 0; j < sMap[sMapLen].len && j < maxUnicodeString; ++j) {
- strncpy(uHex, uStr + j*4, 4);
- uHex[4] = '\0';
- if (sscanf(uHex, "%x", &sMap[sMapLen].u[j]) != 1) {
- error(-1, "Illegal entry in ToUnicode CMap");
- }
- }
- sMap[sMapLen].u[sMap[sMapLen].len - 1] += offset;
- ++sMapLen;
- }
-}
-
-CharCodeToUnicode::CharCodeToUnicode(GString *tagA) {
- CharCode i;
-
- tag = tagA;
- mapLen = 256;
- map = (Unicode *)gmallocn(mapLen, sizeof(Unicode));
- for (i = 0; i < mapLen; ++i) {
- map[i] = 0;
- }
- sMap = NULL;
- sMapLen = sMapSize = 0;
- refCnt = 1;
-#if MULTITHREADED
- gInitMutex(&mutex);
-#endif
-}
-
-CharCodeToUnicode::CharCodeToUnicode(GString *tagA, Unicode *mapA,
- CharCode mapLenA, GBool copyMap,
- CharCodeToUnicodeString *sMapA,
- int sMapLenA, int sMapSizeA) {
- tag = tagA;
- mapLen = mapLenA;
- if (copyMap) {
- map = (Unicode *)gmallocn(mapLen, sizeof(Unicode));
- memcpy(map, mapA, mapLen * sizeof(Unicode));
- } else {
- map = mapA;
- }
- sMap = sMapA;
- sMapLen = sMapLenA;
- sMapSize = sMapSizeA;
- refCnt = 1;
-#if MULTITHREADED
- gInitMutex(&mutex);
-#endif
-}
-
-CharCodeToUnicode::~CharCodeToUnicode() {
- if (tag) {
- delete tag;
- }
- gfree(map);
- if (sMap) {
- gfree(sMap);
- }
-#if MULTITHREADED
- gDestroyMutex(&mutex);
-#endif
-}
-
-void CharCodeToUnicode::incRefCnt() {
-#if MULTITHREADED
- gLockMutex(&mutex);
-#endif
- ++refCnt;
-#if MULTITHREADED
- gUnlockMutex(&mutex);
-#endif
-}
-
-void CharCodeToUnicode::decRefCnt() {
- GBool done;
-
-#if MULTITHREADED
- gLockMutex(&mutex);
-#endif
- done = --refCnt == 0;
-#if MULTITHREADED
- gUnlockMutex(&mutex);
-#endif
- if (done) {
- delete this;
- }
-}
-
-GBool CharCodeToUnicode::match(GString *tagA) {
- return tag && !tag->cmp(tagA);
-}
-
-void CharCodeToUnicode::setMapping(CharCode c, Unicode *u, int len) {
- int i, j;
-
- if (len == 1) {
- map[c] = u[0];
- } else {
- for (i = 0; i < sMapLen; ++i) {
- if (sMap[i].c == c) {
- break;
- }
- }
- if (i == sMapLen) {
- if (sMapLen == sMapSize) {
- sMapSize += 8;
- sMap = (CharCodeToUnicodeString *)
- greallocn(sMap, sMapSize, sizeof(CharCodeToUnicodeString));
- }
- ++sMapLen;
- }
- map[c] = 0;
- sMap[i].c = c;
- sMap[i].len = len;
- for (j = 0; j < len && j < maxUnicodeString; ++j) {
- sMap[i].u[j] = u[j];
- }
- }
-}
-
-int CharCodeToUnicode::mapToUnicode(CharCode c, Unicode *u, int size) {
- int i, j;
-
- if (c >= mapLen) {
- return 0;
- }
- if (map[c]) {
- u[0] = map[c];
- return 1;
- }
- for (i = 0; i < sMapLen; ++i) {
- if (sMap[i].c == c) {
- for (j = 0; j < sMap[i].len && j < size; ++j) {
- u[j] = sMap[i].u[j];
- }
- return j;
- }
- }
- return 0;
-}
-
-//------------------------------------------------------------------------
-
-CharCodeToUnicodeCache::CharCodeToUnicodeCache(int sizeA) {
- int i;
-
- size = sizeA;
- cache = (CharCodeToUnicode **)gmallocn(size, sizeof(CharCodeToUnicode *));
- for (i = 0; i < size; ++i) {
- cache[i] = NULL;
- }
-}
-
-CharCodeToUnicodeCache::~CharCodeToUnicodeCache() {
- int i;
-
- for (i = 0; i < size; ++i) {
- if (cache[i]) {
- cache[i]->decRefCnt();
- }
- }
- gfree(cache);
-}
-
-CharCodeToUnicode *CharCodeToUnicodeCache::getCharCodeToUnicode(GString *tag) {
- CharCodeToUnicode *ctu;
- int i, j;
-
- if (cache[0] && cache[0]->match(tag)) {
- cache[0]->incRefCnt();
- return cache[0];
- }
- for (i = 1; i < size; ++i) {
- if (cache[i] && cache[i]->match(tag)) {
- ctu = cache[i];
- for (j = i; j >= 1; --j) {
- cache[j] = cache[j - 1];
- }
- cache[0] = ctu;
- ctu->incRefCnt();
- return ctu;
- }
- }
- return NULL;
-}
-
-void CharCodeToUnicodeCache::add(CharCodeToUnicode *ctu) {
- int i;
-
- if (cache[size - 1]) {
- cache[size - 1]->decRefCnt();
- }
- for (i = size - 1; i >= 1; --i) {
- cache[i] = cache[i - 1];
- }
- cache[0] = ctu;
- ctu->incRefCnt();
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-09 08:31:08 +0000