Thu, 25 Aug 2016 12:16:57 +0200
replaces stack buffers with UCX buffers
universe@21 | 1 | /* |
universe@21 | 2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
universe@21 | 3 | * |
universe@35 | 4 | * Copyright 2016 Mike Becker. All rights reserved. |
universe@21 | 5 | * |
universe@21 | 6 | * Redistribution and use in source and binary forms, with or without |
universe@21 | 7 | * modification, are permitted provided that the following conditions are met: |
universe@21 | 8 | * |
universe@21 | 9 | * 1. Redistributions of source code must retain the above copyright |
universe@21 | 10 | * notice, this list of conditions and the following disclaimer. |
universe@21 | 11 | * |
universe@21 | 12 | * 2. Redistributions in binary form must reproduce the above copyright |
universe@21 | 13 | * notice, this list of conditions and the following disclaimer in the |
universe@21 | 14 | * documentation and/or other materials provided with the distribution. |
universe@21 | 15 | * |
universe@21 | 16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
universe@21 | 17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
universe@21 | 18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
universe@21 | 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
universe@21 | 20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
universe@21 | 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
universe@21 | 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
universe@21 | 23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
universe@21 | 24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
universe@21 | 25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
universe@21 | 26 | * POSSIBILITY OF SUCH DAMAGE. |
universe@21 | 27 | * |
universe@21 | 28 | */ |
universe@21 | 29 | |
universe@21 | 30 | #include "ccodegen.h" |
universe@21 | 31 | |
universe@21 | 32 | const char* ckeywords[] = { |
universe@21 | 33 | "auto", "break", "case", "char", "const", "continue", "default", "do", |
universe@21 | 34 | "double", "else", "enum", "extern", "float", "for", "goto", "if", "int", |
universe@21 | 35 | "long", "register", "return", "short", "signed", "sizeof", "static", |
universe@21 | 36 | "struct", "switch", "typedef", "union", "unsigned", "void", "volatile", |
universe@21 | 37 | "while", NULL |
universe@21 | 38 | }; |
universe@21 | 39 | |
universe@51 | 40 | void c_highlighter(char *src, UcxBuffer *dest, HighlighterData *hd) { |
universe@51 | 41 | /* reset buffers without clearing them */ |
universe@51 | 42 | hd->primary_buffer->size = hd->primary_buffer->pos = 0; |
universe@51 | 43 | hd->secondary_buffer->size = hd->secondary_buffer->pos = 0; |
universe@47 | 44 | |
universe@51 | 45 | /* alias the buffers for better handling */ |
universe@51 | 46 | UcxBuffer *wbuf = hd->primary_buffer; |
universe@51 | 47 | UcxBuffer *ifilebuf = hd->secondary_buffer; |
universe@47 | 48 | |
universe@51 | 49 | /* local information */ |
universe@48 | 50 | size_t sp = (size_t)-1; |
universe@21 | 51 | int isstring = 0, iscomment = 0, isinclude = 0, parseinclude = 0; |
universe@28 | 52 | char quote = '\0'; |
universe@21 | 53 | int isescaping = 0; |
universe@31 | 54 | |
universe@31 | 55 | /* continue a multi line comment highlighting */ |
universe@51 | 56 | if (hd->multiline_comment) { |
universe@21 | 57 | iscomment = 1; |
universe@48 | 58 | ucx_buffer_puts(dest, "<span class=\"c2html-comment\">"); |
universe@21 | 59 | } |
universe@21 | 60 | |
universe@39 | 61 | char c; |
universe@39 | 62 | do { |
universe@39 | 63 | c = src[++sp]; |
universe@39 | 64 | if (!c) break; |
universe@39 | 65 | |
universe@21 | 66 | /* comments */ |
universe@26 | 67 | if (!isstring && c == '/') { |
universe@51 | 68 | if (hd->multiline_comment && sp > 0 && src[sp-1] == '*') { |
universe@21 | 69 | iscomment = 0; |
universe@51 | 70 | hd->multiline_comment = 0; |
universe@48 | 71 | ucx_buffer_puts(dest, "/</span>"); |
universe@21 | 72 | continue; |
universe@21 | 73 | } else if (!iscomment && (src[sp+1] == '/' || src[sp+1] == '*')) { |
universe@21 | 74 | iscomment = 1; |
universe@51 | 75 | hd->multiline_comment = (src[sp+1] == '*'); |
universe@48 | 76 | ucx_buffer_puts(dest, "<span class=\"c2html-comment\">"); |
universe@21 | 77 | } |
universe@21 | 78 | } |
universe@21 | 79 | |
universe@21 | 80 | if (iscomment) { |
universe@21 | 81 | if (c == '\n') { |
universe@48 | 82 | ucx_buffer_puts(dest, "</span>\n"); |
universe@48 | 83 | } else { |
universe@48 | 84 | put_htmlescaped(dest, c); |
universe@21 | 85 | } |
universe@21 | 86 | } else if (isinclude) { |
universe@21 | 87 | if (c == '<') { |
universe@48 | 88 | ucx_buffer_puts(dest, |
universe@48 | 89 | "<span class=\"c2html-stdinclude\"><"); |
universe@21 | 90 | } else if (c == '\"') { |
universe@21 | 91 | if (parseinclude) { |
universe@51 | 92 | ucx_buffer_puts(dest, "\">"); |
universe@51 | 93 | ucx_buffer_write(ifilebuf->space, 1, ifilebuf->size, dest); |
universe@51 | 94 | ucx_buffer_puts(dest, "\"</a>"); |
universe@21 | 95 | parseinclude = 0; |
universe@21 | 96 | } else { |
universe@48 | 97 | ucx_buffer_puts(dest, |
universe@48 | 98 | "<a class=\"c2html-userinclude\" href=\""); |
universe@51 | 99 | ucx_buffer_putc(ifilebuf, '\"'); |
universe@21 | 100 | parseinclude = 1; |
universe@21 | 101 | } |
universe@21 | 102 | } else if (c == '>') { |
universe@48 | 103 | ucx_buffer_puts(dest, "></span>"); |
universe@21 | 104 | } else { |
universe@21 | 105 | if (parseinclude) { |
universe@51 | 106 | ucx_buffer_putc(ifilebuf, c); |
universe@21 | 107 | } |
universe@48 | 108 | put_htmlescaped(dest, c); |
universe@21 | 109 | } |
universe@21 | 110 | } else { |
universe@21 | 111 | /* strings */ |
universe@21 | 112 | if (!isescaping && (c == '\'' || c == '\"')) { |
universe@21 | 113 | if (isstring) { |
universe@48 | 114 | put_htmlescaped(dest, c); |
universe@28 | 115 | if (c == quote) { |
universe@28 | 116 | isstring = 0; |
universe@48 | 117 | ucx_buffer_puts(dest, "</span>"); |
universe@28 | 118 | } else { |
universe@48 | 119 | put_htmlescaped(dest, c); |
universe@28 | 120 | } |
universe@21 | 121 | } else { |
universe@28 | 122 | isstring = 1; |
universe@28 | 123 | quote = c; |
universe@48 | 124 | ucx_buffer_puts(dest, "<span class=\"c2html-string\">"); |
universe@48 | 125 | put_htmlescaped(dest, c); |
universe@21 | 126 | } |
universe@21 | 127 | } else { |
universe@21 | 128 | if (isstring) { |
universe@48 | 129 | put_htmlescaped(dest, c); |
universe@51 | 130 | } else if (!isalnum(c) && c!='_' && c!='#') { |
universe@51 | 131 | /* write buffered word, if any */ |
universe@51 | 132 | if (wbuf->size > 0) { |
universe@51 | 133 | sstr_t word = sstrn(wbuf->space, wbuf->size); |
universe@21 | 134 | int closespan = 1; |
universe@47 | 135 | sstr_t typesuffix = ST("_t"); |
universe@47 | 136 | if (check_keyword(word, ckeywords)) { |
universe@48 | 137 | ucx_buffer_puts(dest, |
universe@48 | 138 | "<span class=\"c2html-keyword\">"); |
universe@47 | 139 | } else if (sstrsuffix(word, typesuffix)) { |
universe@48 | 140 | ucx_buffer_puts(dest, |
universe@29 | 141 | "<span class=\"c2html-type\">"); |
universe@47 | 142 | } else if (word.ptr[0] == '#') { |
universe@47 | 143 | isinclude = !sstrcmp(word, S("#include")); |
universe@48 | 144 | ucx_buffer_puts(dest, |
universe@29 | 145 | "<span class=\"c2html-directive\">"); |
universe@47 | 146 | } else if (check_capsonly(word)) { |
universe@48 | 147 | ucx_buffer_puts(dest, |
universe@29 | 148 | "<span class=\"c2html-macroconst\">"); |
universe@21 | 149 | } else { |
universe@21 | 150 | closespan = 0; |
universe@21 | 151 | } |
universe@48 | 152 | put_htmlescapedstr(dest, word); |
universe@21 | 153 | if (closespan) { |
universe@48 | 154 | ucx_buffer_puts(dest, "</span>"); |
universe@21 | 155 | } |
universe@21 | 156 | } |
universe@51 | 157 | wbuf->pos = wbuf->size = 0; /* reset word buffer */ |
universe@51 | 158 | |
universe@51 | 159 | /* write current character */ |
universe@48 | 160 | put_htmlescaped(dest, c); |
universe@21 | 161 | } else { |
universe@51 | 162 | /* buffer the current word */ |
universe@51 | 163 | ucx_buffer_putc(wbuf, c); |
universe@21 | 164 | } |
universe@21 | 165 | } |
universe@21 | 166 | |
universe@21 | 167 | isescaping = !isescaping & (c == '\\'); |
universe@21 | 168 | } |
universe@39 | 169 | } while (c != '\n'); |
universe@21 | 170 | } |