[spellcheck] Updated Hunspell to 1.5.4

third_party/hunspell/src/parsers/latexparser.cxx

+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Hunspell, based on MySpell.
+ *
+ * The Initial Developers of the Original Code are
+ * Kevin Hendricks (MySpell) and Németh László (Hunspell).
+ * Portions created by the Initial Developers are Copyright (C) 2002-2005
+ * the Initial Developers. All Rights Reserved.
+ *
+ * Contributor(s): David Einstein, Davide Prina, Giuseppe Modugno,
+ * Gianluca Turconi, Simon Brouwer, Noll János, Bíró Árpád,
+ * Goldman Eleonóra, Sarlós Tamás, Bencsáth Boldizsár, Halácsy Péter,
+ * Dvornik László, Gefferth András, Nagy Viktor, Varga Dániel, Chris Halls,
+ * Rene Engelhard, Bram Moolenaar, Dafydd Jones, Harri Pitkänen
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
 #include <cstdlib>
 #include <cstring>
 #include <cstdio>
 #include <ctype.h>
 
 #include "../hunspell/csutil.hxx"
 #include "latexparser.hxx"
 
 #ifndef W32
 using namespace std;
 #endif
 
 static struct {
-        const char * pat[2];
-        int arg;
-} PATTERN[] = {
-        { { "\\(", "\\)" } , 0 },
-        { { "$$", "$$" } , 0 },
-        { { "$", "$" } , 0 },
-        { { "\\begin{math}", "\\end{math}" } , 0 },
-        { { "\\[", "\\]" } , 0 },
-        { { "\\begin{displaymath}", "\\end{displaymath}" } , 0 },
-        { { "\\begin{equation}", "\\end{equation}" } , 0 },
-        { { "\\begin{equation*}", "\\end{equation*}" } , 0 },
-        { { "\\cite", NULL } , 1 },
-        { { "\\nocite", NULL } , 1 },
-        { { "\\index", NULL } , 1 },
-        { { "\\label", NULL } , 1 },
-        { { "\\ref", NULL } , 1 },
-        { { "\\pageref", NULL } , 1 },
-        { { "\\parbox", NULL } , 1 },
-        { { "\\begin{verbatim}", "\\end{verbatim}" } , 0 },
-        { { "\\verb+", "+" } , 0 },
-        { { "\\verb|", "|" } , 0 },
-        { { "\\verb#", "#" } , 0 },
-        { { "\\verb*", "*" } , 0 },
-        { { "\\documentstyle", "\\begin{document}" } , 0 },
-        { { "\\documentclass", "\\begin{document}" } , 0 },
-//      { { "\\documentclass", NULL } , 1 },
-        { { "\\usepackage", NULL } , 1 },
-        { { "\\includeonly", NULL } , 1 },
-        { { "\\include", NULL } , 1 },
-        { { "\\input", NULL } , 1 },
-        { { "\\vspace", NULL } , 1 },
-        { { "\\setlength", NULL } , 2 },
-        { { "\\addtolength", NULL } , 2 },
-        { { "\\settowidth", NULL } , 2 },
-        { { "\\rule", NULL } , 2 },
-        { { "\\hspace", NULL } , 1 } ,
-        { { "\\vspace", NULL } , 1 } ,
-        { { "\\\\[", "]" } , 0 },
-        { { "\\pagebreak[", "]" } , 0 } ,
-        { { "\\nopagebreak[", "]" } , 0 } ,
-        { { "\\enlargethispage", NULL } , 1 } ,
-        { { "\\begin{tabular}", NULL } , 1 } ,
-        { { "\\addcontentsline", NULL } , 2 } ,
-        { { "\\begin{thebibliography}", NULL } , 1 } ,
-        { { "\\bibliography", NULL } , 1 } ,
-        { { "\\bibliographystyle", NULL } , 1 } ,
-        { { "\\bibitem", NULL } , 1 } ,
-        { { "\\begin", NULL } , 1 } ,
-        { { "\\end", NULL } , 1 } ,
-        { { "\\pagestyle", NULL } , 1 } ,
-        { { "\\pagenumbering", NULL } , 1 } ,
-        { { "\\thispagestyle", NULL } , 1 } ,
-        { { "\\newtheorem", NULL } , 2 },
-        { { "\\newcommand", NULL } , 2 },
-        { { "\\renewcommand", NULL } , 2 },
-        { { "\\setcounter", NULL } , 2 },
-        { { "\\addtocounter", NULL } , 1 },
-        { { "\\stepcounter", NULL } , 1 },
-        { { "\\selectlanguage", NULL } , 1 },
-        { { "\\inputencoding", NULL } , 1 },
-        { { "\\hyphenation", NULL } , 1 },
-        { { "\\definecolor", NULL } , 3 },
-        { { "\\color", NULL } , 1 },
-        { { "\\textcolor", NULL } , 1 },
-        { { "\\pagecolor", NULL } , 1 },
-        { { "\\colorbox", NULL } , 2 },
-        { { "\\fcolorbox", NULL } , 2 },
-        { { "\\declaregraphicsextensions", NULL } , 1 },
-        { { "\\psfig", NULL } , 1 },
-        { { "\\url", NULL } , 1 },
-        { { "\\eqref", NULL } , 1 },
-        { { "\\vskip", NULL } , 1 },
-        { { "\\vglue", NULL } , 1 },
-        { { "\'\'", NULL } , 1 }
-};
+  const char* pat[2];
+  int arg;
+} PATTERN[] = {{{"\\(", "\\)"}, 0},
+               {{"$$", "$$"}, 0},
+               {{"$", "$"}, 0},
+               {{"\\begin{math}", "\\end{math}"}, 0},
+               {{"\\[", "\\]"}, 0},
+               {{"\\begin{displaymath}", "\\end{displaymath}"}, 0},
+               {{"\\begin{equation}", "\\end{equation}"}, 0},
+               {{"\\begin{equation*}", "\\end{equation*}"}, 0},
+               {{"\\cite", NULL}, 1},
+               {{"\\nocite", NULL}, 1},
+               {{"\\index", NULL}, 1},
+               {{"\\label", NULL}, 1},
+               {{"\\ref", NULL}, 1},
+               {{"\\pageref", NULL}, 1},
+               {{"\\autoref", NULL}, 1},
+               {{"\\parbox", NULL}, 1},
+               {{"\\begin{verbatim}", "\\end{verbatim}"}, 0},
+               {{"\\verb+", "+"}, 0},
+               {{"\\verb|", "|"}, 0},
+               {{"\\verb#", "#"}, 0},
+               {{"\\verb*", "*"}, 0},
+               {{"\\documentstyle", "\\begin{document}"}, 0},
+               {{"\\documentclass", "\\begin{document}"}, 0},
+               //       { { "\\documentclass", NULL } , 1 },
+               {{"\\usepackage", NULL}, 1},
+               {{"\\includeonly", NULL}, 1},
+               {{"\\include", NULL}, 1},
+               {{"\\input", NULL}, 1},
+               {{"\\vspace", NULL}, 1},
+               {{"\\setlength", NULL}, 2},
+               {{"\\addtolength", NULL}, 2},
+               {{"\\settowidth", NULL}, 2},
+               {{"\\rule", NULL}, 2},
+               {{"\\hspace", NULL}, 1},
+               {{"\\vspace", NULL}, 1},
+               {{"\\\\[", "]"}, 0},
+               {{"\\pagebreak[", "]"}, 0},
+               {{"\\nopagebreak[", "]"}, 0},
+               {{"\\enlargethispage", NULL}, 1},
+               {{"\\begin{tabular}", NULL}, 1},
+               {{"\\addcontentsline", NULL}, 2},
+               {{"\\begin{thebibliography}", NULL}, 1},
+               {{"\\bibliography", NULL}, 1},
+               {{"\\bibliographystyle", NULL}, 1},
+               {{"\\bibitem", NULL}, 1},
+               {{"\\begin", NULL}, 1},
+               {{"\\end", NULL}, 1},
+               {{"\\pagestyle", NULL}, 1},
+               {{"\\pagenumbering", NULL}, 1},
+               {{"\\thispagestyle", NULL}, 1},
+               {{"\\newtheorem", NULL}, 2},
+               {{"\\newcommand", NULL}, 2},
+               {{"\\renewcommand", NULL}, 2},
+               {{"\\setcounter", NULL}, 2},
+               {{"\\addtocounter", NULL}, 1},
+               {{"\\stepcounter", NULL}, 1},
+               {{"\\selectlanguage", NULL}, 1},
+               {{"\\inputencoding", NULL}, 1},
+               {{"\\hyphenation", NULL}, 1},
+               {{"\\definecolor", NULL}, 3},
+               {{"\\color", NULL}, 1},
+               {{"\\textcolor", NULL}, 1},
+               {{"\\pagecolor", NULL}, 1},
+               {{"\\colorbox", NULL}, 2},
+               {{"\\fcolorbox", NULL}, 2},
+               {{"\\declaregraphicsextensions", NULL}, 1},
+               {{"\\psfig", NULL}, 1},
+               {{"\\url", NULL}, 1},
+               {{"\\eqref", NULL}, 1},
+               {{"\\vskip", NULL}, 1},
+               {{"\\vglue", NULL}, 1},
+               {{"\'\'", NULL}, 1}};
 
 #define PATTERN_LEN (sizeof(PATTERN) / sizeof(PATTERN[0]))
 
-LaTeXParser::LaTeXParser(const char * wordchars)
-{
-        init(wordchars);
+LaTeXParser::LaTeXParser(const char* wordchars)
+    : TextParser(wordchars)
+    , pattern_num(0), depth(0), arg(0), opt(0) {
 }
 
-LaTeXParser::LaTeXParser(unsigned short * wordchars, int len)
-{
-        init(wordchars, len);
+LaTeXParser::LaTeXParser(const w_char* wordchars, int len)
+    : TextParser(wordchars, len)
+    , pattern_num(0), depth(0), arg(0), opt(0) {
 }
 
-LaTeXParser::~LaTeXParser() 
-{
-}
+LaTeXParser::~LaTeXParser() {}
 
-int LaTeXParser::look_pattern(int col)
-{
-        for (unsigned int i = 0; i < PATTERN_LEN; i++) {
-                char * j = line[actual] + head;
-                const char * k = PATTERN[i].pat[col];
-                if (! k) continue;
-                while ((*k != '\0') && (tolower(*j) == *k)) {
-                        j++;
-                        k++;
-                }
-                if (*k == '\0') return i;
-        }
-        return -1;
+int LaTeXParser::look_pattern(int col) {
+  for (unsigned int i = 0; i < PATTERN_LEN; i++) {
+    const char* j = line[actual].c_str() + head;
+    const char* k = PATTERN[i].pat[col];
+    if (!k)
+      continue;
+    while ((*k != '\0') && (tolower(*j) == *k)) {
+      j++;
+      k++;
+    }
+    if (*k == '\0')
+      return i;
+  }
+  return -1;
 }
 
 /*
  * LaTeXParser
  *
  * state 0: not wordchar
  * state 1: wordchar
  * state 2: comments
- * state 3: commands 
+ * state 3: commands
  * state 4: commands with arguments
  * state 5: % comment
  *
  */
 
+bool LaTeXParser::next_token(std::string& t) {
+  t.clear();
+  int i;
+  int slash = 0;
+  int apostrophe;
+  for (;;) {
+    // fprintf(stderr,"depth: %d, state: %d, , arg: %d, token:
+    // %s\n",depth,state,arg,line[actual]+head);
 
-char * LaTeXParser::next_token()
-{
-        int i;
-        int slash = 0;
-        int apostrophe;
-        for (;;) {
-                // fprintf(stderr,"depth: %d, state: %d, , arg: %d, token: %s\n",depth,state,arg,line[actual]+head);
-                
-                switch (state)
-                {
-                case 0: // non word chars
-                        if ((pattern_num = look_pattern(0)) != -1) {
-                                if (PATTERN[pattern_num].pat[1]) {
-                                        state = 2;
-                                } else {
-                                        state = 4;
-                                        depth = 0;
-                                        arg = 0;
-                                        opt = 1;
-                                }
-                                head += strlen(PATTERN[pattern_num].pat[0]) - 1;
-                        } else if ((line[actual][head] == '%')) {
-                                        state = 5;
-                        } else if (is_wordchar(line[actual] + head)) {
-                                state = 1;
-                                token = head;
-                        } else if (line[actual][head] == '\\') {
-                                if (line[actual][head + 1] == '\\' ||  // \\ (linebreak)
-                                        (line[actual][head + 1] == '$') || // \$ (dollar sign)
-                                        (line[actual][head + 1] == '%')) { // \% (percent)
-                                        head++;
-                                        break;
-                                }
-                                state = 3;
-                        } else if (line[actual][head] == '%') {
-                                if ((head==0) || (line[actual][head - 1] != '\\')) state = 5;
-                        }
-                        break;
-                case 1: // wordchar
-                        apostrophe = 0;
-                        if (! is_wordchar(line[actual] + head) ||
-                          (line[actual][head] == '\'' && line[actual][head+1] == '\'' && ++apostrophe)) {
-                                state = 0;
-                                char * t = alloc_token(token, &head);
-                                if (apostrophe) head += 2;
-                                if (t) return t;
-                        }
-                        break;
-                case 2: // comment, labels, etc
-                        if (((i = look_pattern(1)) != -1) && 
-                                (strcmp(PATTERN[i].pat[1],PATTERN[pattern_num].pat[1]) == 0)) {
-                                        state = 0;
-                                        head += strlen(PATTERN[pattern_num].pat[1]) - 1;
-                        }
-                        break;
-                case 3: // command
-                        if ((tolower(line[actual][head]) < 'a') || (tolower(line[actual][head]) > 'z')) {
-                                state = 0;
-                                head--;
-                        }
-                        break;
-                case 4: // command with arguments
-                        if (slash && (line[actual][head] != '\0')) {
-                                slash = 0;
-                                head++;
-                                break;
-                        } else if (line[actual][head]=='\\') {
-                                slash = 1;
-                        } else if ((line[actual][head] == '{') ||
-                                ((opt) && (line[actual][head] == '['))) {
-                                        depth++;
-                                        opt = 0;
-                        } else if (line[actual][head] == '}') {
-                                depth--;
-                                if (depth == 0) { 
-                                        opt = 1;
-                                        arg++;
-                                }
-                                if (((depth == 0) && (arg == PATTERN[pattern_num].arg)) ||
-                                        (depth < 0) ) {
-                                                state = 0; // XXX not handles the last optional arg.
-                                }
-                        } else if (line[actual][head] == ']') depth--;
-                } // case
-                if (next_char(line[actual], &head)) {
-                        if (state == 5) state = 0;
-                        return NULL;
-                }
-        }
+    switch (state) {
+      case 0:  // non word chars
+        if ((pattern_num = look_pattern(0)) != -1) {
+          if (PATTERN[pattern_num].pat[1]) {
+            state = 2;
+          } else {
+            state = 4;
+            depth = 0;
+            arg = 0;
+            opt = 1;
+          }
+          head += strlen(PATTERN[pattern_num].pat[0]) - 1;
+        } else if (line[actual][head] == '%') {
+          state = 5;
+        } else if (is_wordchar(line[actual].c_str() + head)) {
+          state = 1;
+          token = head;
+        } else if (line[actual][head] == '\\') {
+          if (line[actual][head + 1] == '\\' ||   // \\ (linebreak)
+              (line[actual][head + 1] == '$') ||  // \$ (dollar sign)
+              (line[actual][head + 1] == '%')) {  // \% (percent)
+            head++;
+            break;
+          }
+          state = 3;
+        }
+        break;
+      case 1:  // wordchar
+        apostrophe = 0;
+        if (!is_wordchar(line[actual].c_str() + head) ||
+            (line[actual][head] == '\'' && line[actual][head + 1] == '\'' &&
+             ++apostrophe)) {
+          state = 0;
+          bool ok = alloc_token(token, &head, t);
+          if (apostrophe)
+            head += 2;
+          if (ok)
+            return true;
+        }
+        break;
+      case 2:  // comment, labels, etc
+        if (((i = look_pattern(1)) != -1) &&
+            (strcmp(PATTERN[i].pat[1], PATTERN[pattern_num].pat[1]) == 0)) {
+          state = 0;
+          head += strlen(PATTERN[pattern_num].pat[1]) - 1;
+        }
+        break;
+      case 3:  // command
+        if ((tolower(line[actual][head]) < 'a') ||
+            (tolower(line[actual][head]) > 'z')) {
+          state = 0;
+          head--;
+        }
+        break;
+      case 4:  // command with arguments
+        if (slash && (line[actual][head] != '\0')) {
+          slash = 0;
+          head++;
+          break;
+        } else if (line[actual][head] == '\\') {
+          slash = 1;
+        } else if ((line[actual][head] == '{') ||
+                   ((opt) && (line[actual][head] == '['))) {
+          depth++;
+          opt = 0;
+        } else if (line[actual][head] == '}') {
+          depth--;
+          if (depth == 0) {
+            opt = 1;
+            arg++;
+          }
+          if (((depth == 0) && (arg == PATTERN[pattern_num].arg)) ||
+              (depth < 0)) {
+            state = 0;  // XXX not handles the last optional arg.
+          }
+        } else if (line[actual][head] == ']')
+          depth--;
+    }  // case
+    if (next_char(line[actual].c_str(), &head)) {
+      if (state == 5)
+        state = 0;
+      return false;
+    }
+  }
 }