comparison: src/ccodegen.c
src/ccodegen.c
- changeset 21
- 537aec525835
- child 24
- e43dee5892f4
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| 20:ebbf0776c1bc | 21:537aec525835 |
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| 1 /* | |
| 2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. | |
| 3 * | |
| 4 * Copyright 2014 Mike Becker. All rights reserved. | |
| 5 * | |
| 6 * Redistribution and use in source and binary forms, with or without | |
| 7 * modification, are permitted provided that the following conditions are met: | |
| 8 * | |
| 9 * 1. Redistributions of source code must retain the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer. | |
| 11 * | |
| 12 * 2. Redistributions in binary form must reproduce the above copyright | |
| 13 * notice, this list of conditions and the following disclaimer in the | |
| 14 * documentation and/or other materials provided with the distribution. | |
| 15 * | |
| 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
| 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE | |
| 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
| 26 * POSSIBILITY OF SUCH DAMAGE. | |
| 27 * | |
| 28 */ | |
| 29 | |
| 30 #include "ccodegen.h" | |
| 31 #include <string.h> | |
| 32 #include <ctype.h> | |
| 33 | |
| 34 const char* ckeywords[] = { | |
| 35 "auto", "break", "case", "char", "const", "continue", "default", "do", | |
| 36 "double", "else", "enum", "extern", "float", "for", "goto", "if", "int", | |
| 37 "long", "register", "return", "short", "signed", "sizeof", "static", | |
| 38 "struct", "switch", "typedef", "union", "unsigned", "void", "volatile", | |
| 39 "while", NULL | |
| 40 }; | |
| 41 | |
| 42 int isctype(char *word, size_t len) { | |
| 43 return (word[len-2] == '_' && word[len-1] == 't'); | |
| 44 } | |
| 45 | |
| 46 int iscdirective(char *word) { | |
| 47 return (word[0] == '#'); | |
| 48 } | |
| 49 | |
| 50 void cparseline(char *src, char *dest, highlighter_t *hltr) { | |
| 51 size_t sp = 0, dp = 0; | |
| 52 /* indent */ | |
| 53 while (isspace(src[sp])) { | |
| 54 dest[dp++] = src[sp++]; | |
| 55 } | |
| 56 | |
| 57 memset(hltr->word, 0, WORDBUF_SIZE); | |
| 58 size_t wp = 0, ifp = 0; | |
| 59 int isstring = 0, iscomment = 0, isinclude = 0, parseinclude = 0; | |
| 60 int isescaping = 0; | |
| 61 | |
| 62 if (hltr->iscommentml) { | |
| 63 iscomment = 1; | |
| 64 memcpy(&(dest[dp]), "<span class=\"c2html-comment\">", 29); | |
| 65 dp += 29; | |
| 66 } | |
| 67 | |
| 68 for (char c = src[sp] ; c ; c=src[++sp]) { | |
| 69 /* comments */ | |
| 70 if (c == '/') { | |
| 71 if (hltr->iscommentml && sp > 0 && src[sp-1] == '*') { | |
| 72 iscomment = 0; | |
| 73 hltr->iscommentml = 0; | |
| 74 memcpy(&(dest[dp]), "/</span>", 8); | |
| 75 dp += 8; | |
| 76 continue; | |
| 77 } else if (!iscomment && (src[sp+1] == '/' || src[sp+1] == '*')) { | |
| 78 iscomment = 1; | |
| 79 hltr->iscommentml = (src[sp+1] == '*'); | |
| 80 memcpy(&(dest[dp]), "<span class=\"c2html-comment\">", 29); | |
| 81 dp += 29; | |
| 82 } | |
| 83 } | |
| 84 | |
| 85 if (iscomment) { | |
| 86 if (c == '\n') { | |
| 87 memcpy(&(dest[dp]), "</span>", 7); | |
| 88 dp += 7; | |
| 89 } | |
| 90 dp = writeescapedchar(dest, dp, c); | |
| 91 } else if (isinclude) { | |
| 92 if (c == '<') { | |
| 93 memcpy(&(dest[dp]), "<span class=\"c2html-stdinclude\">", 32); | |
| 94 dp += 32; | |
| 95 dp = writeescapedchar(dest, dp, c); | |
| 96 } else if (c == '\"') { | |
| 97 if (parseinclude) { | |
| 98 dest[dp++] = '\"'; | |
| 99 dest[dp++] = '>'; | |
| 100 memcpy(&(dest[dp]), hltr->includefile, ifp); | |
| 101 dp += ifp; | |
| 102 | |
| 103 dp = writeescapedchar(dest, dp, c); | |
| 104 memcpy(&(dest[dp]), "</a>", 4); | |
| 105 dp += 4; | |
| 106 parseinclude = 0; | |
| 107 } else { | |
| 108 memcpy(&(dest[dp]), | |
| 109 "<a class=\"c2html-userinclude\" href=", 35); | |
| 110 dp += 35; | |
| 111 dp = writeescapedchar(dest, dp, c); | |
| 112 ifp = 0; | |
| 113 hltr->includefile[ifp++] = '\"'; | |
| 114 parseinclude = 1; | |
| 115 } | |
| 116 } else if (c == '>') { | |
| 117 dp = writeescapedchar(dest, dp, c); | |
| 118 memcpy(&(dest[dp]), "</span>", 7); | |
| 119 dp += 7; | |
| 120 } else { | |
| 121 if (parseinclude) { | |
| 122 hltr->includefile[ifp++] = c; | |
| 123 } | |
| 124 dp = writeescapedchar(dest, dp, c); | |
| 125 } | |
| 126 } else { | |
| 127 /* strings */ | |
| 128 if (!isescaping && (c == '\'' || c == '\"')) { | |
| 129 isstring ^= 1; | |
| 130 if (isstring) { | |
| 131 memcpy(&(dest[dp]), "<span class=\"c2html-string\">", 28); | |
| 132 dp += 28; | |
| 133 dp = writeescapedchar(dest, dp, c); | |
| 134 } else { | |
| 135 dp = writeescapedchar(dest, dp, c); | |
| 136 memcpy(&(dest[dp]), "</span>", 7); | |
| 137 dp += 7; | |
| 138 } | |
| 139 } else { | |
| 140 if (isstring) { | |
| 141 dp = writeescapedchar(dest, dp, c); | |
| 142 } else if (!iswordcharacter(c)) { | |
| 143 /* interpret word int_t */ | |
| 144 if (wp > 0 && wp < WORDBUF_SIZE) { | |
| 145 int closespan = 1; | |
| 146 if (iskeyword(hltr->word, hltr->keywords)) { | |
| 147 memcpy(&(dest[dp]), | |
| 148 "<span class=\"c2html-keyword\">", 29); | |
| 149 dp += 29; | |
| 150 } else if (hltr->istype(hltr->word, wp)) { | |
| 151 memcpy(&(dest[dp]), | |
| 152 "<span class=\"c2html-type\">", 26); | |
| 153 dp += 26; | |
| 154 } else if (hltr->isdirective(hltr->word)) { | |
| 155 isinclude = !strncmp( | |
| 156 "#include", hltr->word, WORDBUF_SIZE); | |
| 157 memcpy(&(dest[dp]), | |
| 158 "<span class=\"c2html-directive\">", 31); | |
| 159 dp += 31; | |
| 160 } else if (iscapsonly(hltr->word, wp)) { | |
| 161 memcpy(&(dest[dp]), | |
| 162 "<span class=\"c2html-macroconst\">", 32); | |
| 163 dp += 32; | |
| 164 } else { | |
| 165 closespan = 0; | |
| 166 } | |
| 167 for (int i = 0 ; i < wp ; i++) { | |
| 168 dp = writeescapedchar(dest, dp, hltr->word[i]); | |
| 169 } | |
| 170 if (closespan) { | |
| 171 memcpy(&(dest[dp]), "</span>", 7); | |
| 172 dp += 7; | |
| 173 } | |
| 174 } | |
| 175 memset(hltr->word, 0, WORDBUF_SIZE); | |
| 176 wp = 0; | |
| 177 dp = writeescapedchar(dest, dp, c); | |
| 178 } else { | |
| 179 /* read word */ | |
| 180 if (wp < WORDBUF_SIZE) { | |
| 181 hltr->word[wp++] = c; | |
| 182 } else if (wp == WORDBUF_SIZE) { | |
| 183 for (int i = 0 ; i < WORDBUF_SIZE ; i++) { | |
| 184 dp = writeescapedchar(dest, dp, hltr->word[i]); | |
| 185 } | |
| 186 wp++; | |
| 187 dp = writeescapedchar(dest, dp, c); | |
| 188 } else { | |
| 189 dp = writeescapedchar(dest, dp, c); | |
| 190 } | |
| 191 } | |
| 192 } | |
| 193 | |
| 194 isescaping = !isescaping & (c == '\\'); | |
| 195 } | |
| 196 } | |
| 197 dest[dp] = 0; | |
| 198 } |
