src/javacodegen.c

Tue, 23 Aug 2016 15:55:02 +0200

author
Mike Becker <universe@uap-core.de>
date
Tue, 23 Aug 2016 15:55:02 +0200
changeset 46
534a4ef4143d
parent 45
1f3835182aeb
child 47
c39ecbbca7c0
permissions
-rw-r--r--

refactors highlighter_t and removes abstraction overhead

     1 /*
     2  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
     3  *
     4  * Copyright 2016 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  */
    30 #include "javacodegen.h"
    31 #include <string.h>
    32 #include <ctype.h>
    34 const char* jkeywords[] = {
    35     "abstract", "continue", "for", "new", "switch", "assert", "default", "goto",
    36     "package", "synchronized", "boolean", "do", "if", "private", "this",
    37     "break", "double", "implements", "protected", "throw", "byte", "else",
    38     "import", "public", "throws", "case", "enum", "instanceof", "return",
    39     "transient", "catch", "extends", "int", "short", "try", "char", "final",
    40     "interface", "static", "void", "class", "finally", "long", "strictfp",
    41     "volatile", "const", "float", "native", "super", "while", NULL
    42 };
    44 #define memcpy_const(darr,doff,str) memcpy(&(darr[doff]), str, sizeof(str)-1); \
    45                                     dp += sizeof(str)-1
    47 void jparseline(char *src, UcxBuffer *destbuf, HighlighterData *hltr) {
    48     /* TODO: workaround for using old code with UcxBuffer */
    49     char *dest = destbuf->space + destbuf->pos;
    51     memset(hltr->word, 0, WORDBUF_SIZE);
    52     size_t wp = 0, sp = (size_t)-1, dp = 0;
    53     int isstring = 0, iscomment = 0, isimport = 0;
    54     char quote = '\0';
    55     int isescaping = 0;
    57     if (hltr->iscommentml) {
    58         iscomment = 1;
    59         memcpy_const(dest, dp, "<span class=\"c2html-comment\">");
    60     }
    62     char c;
    63     do {
    64         c = src[++sp];
    65         if (!c) break;
    67         /* comments */
    68         if (!isstring && c == '/') {
    69             if (hltr->iscommentml && sp > 0 && src[sp-1] == '*') {
    70                 iscomment = 0;
    71                 hltr->iscommentml = 0;
    72                 memcpy_const(dest, dp, "/</span>");
    73                 continue;
    74             } else if (!iscomment && (src[sp+1] == '/' || src[sp+1] == '*')) {
    75                 iscomment = 1;
    76                 hltr->iscommentml = (src[sp+1] == '*');
    77                 memcpy_const(dest, dp, "<span class=\"c2html-comment\">");
    78             }
    79         }
    81         if (iscomment) {
    82             if (c == '\n') {
    83                 memcpy(&(dest[dp]), "</span>", 7);
    84                 dp += 7;
    85             }
    86             dp = writeescapedchar(dest, dp, c);
    87         } else if (isimport) {
    88             // TODO: local imports
    89         } else {
    90             /* strings */
    91             if (!isescaping && (c == '\'' || c == '\"')) {
    92                 if (isstring) {
    93                     dp = writeescapedchar(dest, dp, c);
    94                     if (c == quote) {
    95                         isstring = 0;
    96                         memcpy_const(dest, dp, "</span>");
    97                     } else {
    98                         dp = writeescapedchar(dest, dp, c);
    99                     }
   100                 } else {
   101                     isstring = 1;
   102                     quote = c;
   103                     memcpy_const(dest, dp,
   104                         "<span class=\"c2html-string\">");
   105                     dp = writeescapedchar(dest, dp, c);
   106                 }
   107             } else {
   108                 if (isstring) {
   109                     dp = writeescapedchar(dest, dp, c);
   110                 } else if (!iswordcharacter(c)) {
   111                     /* interpret word int_t */
   112                     if (wp > 0 && wp < WORDBUF_SIZE) {
   113                         int closespan = 1;
   114                         if (check_keyword(hltr->word, jkeywords)) {
   115                             memcpy_const(dest, dp, 
   116                                 "<span class=\"c2html-keyword\">");
   117                         } else if (isupper(hltr->word[0])) {
   118                             memcpy_const(dest, dp, 
   119                                 "<span class=\"c2html-type\">");
   120                         } else if (hltr->word[0] == '@') {
   121                             memcpy_const(dest, dp, 
   122                                 "<span class=\"c2html-directive\">");
   123                         } else if (check_capsonly(hltr->word, wp)) {
   124                             memcpy_const(dest, dp, 
   125                                 "<span class=\"c2html-macroconst\">");
   126                         } else {
   127                             closespan = 0;
   128                         }
   129                         for (int i = 0 ; i < wp ; i++) {
   130                             dp = writeescapedchar(dest, dp, hltr->word[i]);
   131                         }
   132                         if (closespan) {
   133                             memcpy_const(dest, dp, "</span>");
   134                         }
   135                     }
   136                     memset(hltr->word, 0, WORDBUF_SIZE);
   137                     wp = 0;
   138                     dp = writeescapedchar(dest, dp, c);
   139                 } else {
   140                     /* read word */
   141                     if (wp < WORDBUF_SIZE) {
   142                         hltr->word[wp++] = c;
   143                     } else if (wp == WORDBUF_SIZE) {
   144                         for (int i = 0 ; i < WORDBUF_SIZE ; i++) {
   145                             dp = writeescapedchar(dest, dp, hltr->word[i]);
   146                         }
   147                         wp++;
   148                         dp = writeescapedchar(dest, dp, c);
   149                     } else {
   150                         dp = writeescapedchar(dest, dp, c);
   151                     }
   152                 }
   153             }
   155             isescaping = !isescaping & (c == '\\');
   156         }
   157     } while (c != '\n');
   158     dest[dp] = 0;
   160     /* TODO: workaround */
   161     destbuf->pos += dp;
   162     destbuf->size += dp;
   163 }

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