jscoverage/trunk/highlight.cpp

/*
    highlight.c - JavaScript syntax highlighting
    Copyright (C) 2008, 2009 siliconforks.com

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License along
    with this program; if not, write to the Free Software Foundation, Inc.,
    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

#include <config.h>

#include "highlight.h"

#include <assert.h>
#include <stdlib.h>
#include <string.h>

#include <jslock.h>
#include <jsscan.h>

#include "util.h"

enum Class {
  CLASS_NONE,
  CLASS_COMMENT,
  CLASS_REGEXP,
  CLASS_NUMBER,
  CLASS_STRING,
  CLASS_SPECIALCHAR,
  CLASS_KEYWORD,
  CLASS_TYPE,
  CLASS_SYMBOL,
  CLASS_CBRACKET
};

static const char * get_class_name(enum Class c) {
  switch (c) {
  case CLASS_NONE:
    abort();
    break;
  case CLASS_COMMENT:
    return "c";
    break;
  case CLASS_REGEXP:
    return "s";
    break;
  case CLASS_NUMBER:
    return "s";
    break;
  case CLASS_STRING:
    return "s";
    break;
  case CLASS_SPECIALCHAR:
    return "t";
    break;
  case CLASS_KEYWORD:
    return "k";
    break;
  case CLASS_TYPE:
    return "k";
    break;
  case CLASS_SYMBOL:
    return "k";
    break;
  case CLASS_CBRACKET:
    return "k";
    break;
  default:
    abort();
    break;
  }
}

static const char * g_id;
static const jschar * g_characters;
static size_t g_num_characters;
static Stream * g_output;
static size_t character_offset;
static uint16_t line_num;
static uint16_t column_num;
static enum Class current_class;

static void output_character(jschar c, enum Class class_) {
  if (c == '\r' || c == '\n' || c == 0x2028 || c == 0x2029) {
    class_ = CLASS_NONE;
  }

  if (class_ != current_class) {
    /* output the end tag */
    if (current_class != CLASS_NONE) {
      Stream_write_string(g_output, "</span>");
    }

    current_class = class_;

    /* output the start tag */
    if (current_class != CLASS_NONE) {
      Stream_printf(g_output, "<span class=\"%s\">", get_class_name(class_));
    }
  }

  if (column_num == UINT16_MAX) {
    fatal("%s: script contains a line with more than 65,535 columns", g_id);
  }
  column_num++;
  switch (c) {
  case '&':
    Stream_write_string(g_output, "&amp;");
    break;
  case '<':
    Stream_write_string(g_output, "&lt;");
    break;
  case '>':
    Stream_write_string(g_output, "&gt;");
    break;
  case '\t':
    Stream_write_char(g_output, c);
    break;
  case '\r':
  case '\n':
  case 0x2028:
  case 0x2029:
    if (c == '\r' && character_offset + 1 < g_num_characters && g_characters[character_offset + 1] == '\n') {
      break;
    }
    Stream_write_char(g_output, '\n');
    column_num = 0;
    if (line_num == UINT16_MAX) {
      fatal("%s: script contains more than 65,535 lines", g_id);
    }
    line_num++;
    break;
  default:
    if (32 <= c && c <= 126) {
      Stream_write_char(g_output, c);
    }
    else {
      Stream_printf(g_output, "&#%d;", c);
    }
    break;
  }
  character_offset++;
}

static void mark_nontoken_chars(uint16_t end_line, uint16_t end_column) {
  enum State {
    STATE_NORMAL,
    STATE_LINE_COMMENT,
    STATE_MULTILINE_COMMENT
  };

  enum State state = STATE_NORMAL;
  while (character_offset < g_num_characters) {
    if (end_line != 0 && line_num > end_line) {
      break;
    }
    else if (line_num == end_line && column_num >= end_column) {
      break;
    }

    jschar c = g_characters[character_offset];
    if (c == '\0') {
      fatal("%s: script contains NULL character", g_id);
    }

    switch (state) {
    case STATE_NORMAL:
      if (c == '/' && character_offset + 1 < g_num_characters && g_characters[character_offset + 1] == '/') {
        state = STATE_LINE_COMMENT;
      }
      else if (c == '/' && character_offset + 1 < g_num_characters && g_characters[character_offset + 1] == '*') {
        state = STATE_MULTILINE_COMMENT;
        output_character('/', CLASS_COMMENT);
        output_character('*', CLASS_COMMENT);
        continue;
      }
      break;
    case STATE_LINE_COMMENT:
      if (c == '\r' || c == '\n' || c == 0x2028 || c == 0x2029) {
        state = STATE_NORMAL;
      }
      break;
    case STATE_MULTILINE_COMMENT:
      if (c == '*' && character_offset + 1 < g_num_characters && g_characters[character_offset + 1] == '/') {
        output_character('*', CLASS_COMMENT);
        output_character('/', CLASS_COMMENT);
        state = STATE_NORMAL;
        continue;
      }
      break;
    }

    if (state == STATE_NORMAL) {
      output_character(c, CLASS_NONE);
    }
    else {
      output_character(c, CLASS_COMMENT);
    }
  }
}

void jscoverage_highlight_js(JSContext * context, const char * id, const jschar * characters, size_t num_characters, Stream * output) {
  g_id = id;
  g_characters = characters;
  g_num_characters = num_characters;
  g_output = output;

  character_offset = 0;
  line_num = 1;
  column_num = 0;
  current_class = CLASS_NONE;

  /* tokenize the JavaScript */
  JSTokenStream token_stream;
  if (! js_InitTokenStream(context, &token_stream, characters, num_characters, NULL, NULL, 1)) {
    fatal("cannot create token stream from JavaScript file %s", id);
  }

  for (;;) {
    JSTokenType tt = js_GetToken(context, &token_stream);

    if (tt == TOK_ERROR) {
      fatal("JavaScript parse error: %s: line = %d, col = %d\n", id, line_num, column_num);
    }

    if (tt == TOK_EOF) {
      mark_nontoken_chars(0, 0);
      break;
    }

    /* mark the chars before the token */
    JSToken t = CURRENT_TOKEN(&token_stream);
    mark_nontoken_chars(t.pos.begin.lineno, t.pos.begin.index);

    /* mark the token */
    enum Class class_;
    switch (tt) {
    case TOK_ERROR:
    case TOK_EOF:
      abort();
    case TOK_EOL:
      class_ = CLASS_NONE;
      token_stream.flags |= TSF_OPERAND;
      break;
    case TOK_SEMI:
    case TOK_COMMA:
    case TOK_ASSIGN:
    case TOK_HOOK:
    case TOK_COLON:
    case TOK_OR:
    case TOK_AND:
    case TOK_BITOR:
    case TOK_BITXOR:
    case TOK_BITAND:
    case TOK_EQOP:
    case TOK_RELOP:
    case TOK_SHOP:
    case TOK_PLUS:
    case TOK_MINUS:
    case TOK_STAR:
    case TOK_DIVOP:
      class_ = CLASS_SYMBOL;
      token_stream.flags |= TSF_OPERAND;
      break;
    case TOK_UNARYOP:
      switch (t.t_op) {
      case JSOP_NEG:
      case JSOP_POS:
      case JSOP_NOT:
      case JSOP_BITNOT:
        class_ = CLASS_SYMBOL;
        token_stream.flags |= TSF_OPERAND;
        break;
      case JSOP_TYPEOF:
        class_ = CLASS_KEYWORD;
        token_stream.flags |= TSF_OPERAND;
        break;
      case JSOP_VOID:
        class_ = CLASS_TYPE;
        token_stream.flags |= TSF_OPERAND;
        break;
      default:
        abort();
      }
      break;
    case TOK_INC:
    case TOK_DEC:
      class_ = CLASS_SYMBOL;
      /* token_stream.flags does not change w.r.t. TSF_OPERAND */
      break;
    case TOK_DOT:
    case TOK_LB:
      class_ = CLASS_SYMBOL;
      token_stream.flags |= TSF_OPERAND;
      break;
    case TOK_RB:
      class_ = CLASS_SYMBOL;
      token_stream.flags &= ~TSF_OPERAND;
      break;
    case TOK_LC:
      class_ = CLASS_CBRACKET;
      token_stream.flags |= TSF_OPERAND;
      break;
    case TOK_RC:
      class_ = CLASS_CBRACKET;
      token_stream.flags &= ~TSF_OPERAND;
      break;
    case TOK_LP:
      class_ = CLASS_SYMBOL;
      token_stream.flags |= TSF_OPERAND;
      break;
    case TOK_RP:
      class_ = CLASS_SYMBOL;
      token_stream.flags &= ~TSF_OPERAND;
      break;
    case TOK_NAME:
      class_ = CLASS_NONE;
      token_stream.flags &= ~TSF_OPERAND;
      if (js_PeekToken(context, &token_stream) == TOK_LP) {
        /* function */
        class_ = CLASS_NONE;
      }
      break;
    case TOK_NUMBER:
      class_ = CLASS_NUMBER;
      token_stream.flags &= ~TSF_OPERAND;
      break;
    case TOK_STRING:
      class_ = CLASS_STRING;
      token_stream.flags &= ~TSF_OPERAND;
      break;
    case TOK_REGEXP:
      class_ = CLASS_REGEXP;
      token_stream.flags &= ~TSF_OPERAND;
      break;
    case TOK_PRIMARY:
      switch (t.t_op) {
      case JSOP_TRUE:
      case JSOP_FALSE:
      case JSOP_NULL:
      case JSOP_THIS:
        class_ = CLASS_KEYWORD;
        token_stream.flags &= ~TSF_OPERAND;
        break;
      default:
        abort();
      }
      break;
    case TOK_FUNCTION:
      class_ = CLASS_KEYWORD;
      token_stream.flags |= TSF_OPERAND;
      break;
    case TOK_IF:
    case TOK_ELSE:
    case TOK_SWITCH:
    case TOK_CASE:
    case TOK_DEFAULT:
    case TOK_WHILE:
    case TOK_DO:
    case TOK_FOR:
    case TOK_BREAK:
    case TOK_CONTINUE:
    case TOK_IN:
    case TOK_VAR:
    case TOK_WITH:
    case TOK_RETURN:
    case TOK_NEW:
    case TOK_DELETE:
      token_stream.flags |= TSF_OPERAND;
      class_ = CLASS_KEYWORD;
      break;
    case TOK_DEFSHARP:
    case TOK_USESHARP:
      abort();
      break;
    case TOK_TRY:
    case TOK_CATCH:
    case TOK_FINALLY:
    case TOK_THROW:
    case TOK_INSTANCEOF:
    case TOK_DEBUGGER:
      token_stream.flags |= TSF_OPERAND;
      class_ = CLASS_KEYWORD;
      break;
    case TOK_XMLSTAGO:
    case TOK_XMLETAGO:
    case TOK_XMLPTAGC:
    case TOK_XMLTAGC:
    case TOK_XMLNAME:
    case TOK_XMLATTR:
    case TOK_XMLSPACE:
    case TOK_XMLTEXT:
    case TOK_XMLCOMMENT:
    case TOK_XMLCDATA:
    case TOK_XMLPI:
    case TOK_AT:
    case TOK_DBLCOLON:
    case TOK_ANYNAME:
    case TOK_DBLDOT:
    case TOK_FILTER:
    case TOK_XMLELEM:
    case TOK_XMLLIST:
      abort();
      break;
    case TOK_YIELD:
      token_stream.flags |= TSF_OPERAND;
      class_ = CLASS_KEYWORD;
      break;
    case TOK_ARRAYCOMP:
    case TOK_ARRAYPUSH:
    case TOK_LEXICALSCOPE:
      abort();
      break;
    case TOK_LET:
      token_stream.flags |= TSF_OPERAND;
      class_ = CLASS_KEYWORD;
      break;
    case TOK_SEQ:
    case TOK_FORHEAD:
    case TOK_RESERVED:
    case TOK_LIMIT:
      abort();
      break;
    default:
      abort();
      break;
    }

    uint16_t start_line = t.pos.begin.lineno;
    uint16_t end_line = t.pos.end.lineno;
    uint16_t start_column = t.pos.begin.index;
    uint16_t end_column = t.pos.end.index;
    assert(line_num == start_line);
    assert(column_num == start_column);
    if (start_line == end_line && start_column >= end_column) {
      fatal("%s: script contains line with more than 65,535 characters", id);
    }
    for (;;) {
      assert(character_offset < num_characters);
      jschar c = characters[character_offset];
      if (tt == TOK_STRING && c == '\\') {
        output_character(c, CLASS_SPECIALCHAR);
        assert(character_offset < num_characters);
        c = characters[character_offset];
        output_character(c, CLASS_SPECIALCHAR);
      }
      else {
        output_character(c, class_);
      }

      if (line_num > end_line) {
        break;
      }
      else if (line_num == end_line && column_num >= end_column) {
        break;
      }
    }

    assert(line_num == end_line);
    assert(column_num = end_column);
  }

  if (current_class != CLASS_NONE) {
    output_character('\n', CLASS_NONE);
  }

  js_CloseTokenStream(context, &token_stream);
}
1	/*
2	highlight.c - JavaScript syntax highlighting
3	Copyright (C) 2008, 2009 siliconforks.com
4
5	This program is free software; you can redistribute it and/or modify
6	it under the terms of the GNU General Public License as published by
7	the Free Software Foundation; either version 2 of the License, or
8	(at your option) any later version.
9
10	This program is distributed in the hope that it will be useful,
11	but WITHOUT ANY WARRANTY; without even the implied warranty of
12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13	GNU General Public License for more details.
14
15	You should have received a copy of the GNU General Public License along
16	with this program; if not, write to the Free Software Foundation, Inc.,
17	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18	*/
19
20	#include <config.h>
21
22	#include "highlight.h"
23
24	#include <assert.h>
25	#include <stdlib.h>
26	#include <string.h>
27
28	#include <jslock.h>
29	#include <jsscan.h>
30
31	#include "util.h"
32
33	enum Class {
34	CLASS_NONE,
35	CLASS_COMMENT,
36	CLASS_REGEXP,
37	CLASS_NUMBER,
38	CLASS_STRING,
39	CLASS_SPECIALCHAR,
40	CLASS_KEYWORD,
41	CLASS_TYPE,
42	CLASS_SYMBOL,
43	CLASS_CBRACKET
44	};
45
46	static const char * get_class_name(enum Class c) {
47	switch (c) {
48	case CLASS_NONE:
49	abort();
50	break;
51	case CLASS_COMMENT:
52	return "c";
53	break;
54	case CLASS_REGEXP:
55	return "s";
56	break;
57	case CLASS_NUMBER:
58	return "s";
59	break;
60	case CLASS_STRING:
61	return "s";
62	break;
63	case CLASS_SPECIALCHAR:
64	return "t";
65	break;
66	case CLASS_KEYWORD:
67	return "k";
68	break;
69	case CLASS_TYPE:
70	return "k";
71	break;
72	case CLASS_SYMBOL:
73	return "k";
74	break;
75	case CLASS_CBRACKET:
76	return "k";
77	break;
78	default:
79	abort();
80	break;
81	}
82	}
83
84	static const char * g_id;
85	static const jschar * g_characters;
86	static size_t g_num_characters;
87	static Stream * g_output;
88	static size_t character_offset;
89	static uint16_t line_num;
90	static uint16_t column_num;
91	static enum Class current_class;
92
93	static void output_character(jschar c, enum Class class_) {
94	if (c == '\r' \|\| c == '\n' \|\| c == 0x2028 \|\| c == 0x2029) {
95	class_ = CLASS_NONE;
96	}
97
98	if (class_ != current_class) {
99	/* output the end tag */
100	if (current_class != CLASS_NONE) {
101	Stream_write_string(g_output, "</span>");
102	}
103
104	current_class = class_;
105
106	/* output the start tag */
107	if (current_class != CLASS_NONE) {
108	Stream_printf(g_output, "<span class=\"%s\">", get_class_name(class_));
109	}
110	}
111
112	if (column_num == UINT16_MAX) {
113	fatal("%s: script contains a line with more than 65,535 columns", g_id);
114	}
115	column_num++;
116	switch (c) {
117	case '&':
118	Stream_write_string(g_output, "&");
119	break;
120	case '<':
121	Stream_write_string(g_output, "<");
122	break;
123	case '>':
124	Stream_write_string(g_output, ">");
125	break;
126	case '\t':
127	Stream_write_char(g_output, c);
128	break;
129	case '\r':
130	case '\n':
131	case 0x2028:
132	case 0x2029:
133	if (c == '\r' && character_offset + 1 < g_num_characters && g_characters[character_offset + 1] == '\n') {
134	break;
135	}
136	Stream_write_char(g_output, '\n');
137	column_num = 0;
138	if (line_num == UINT16_MAX) {
139	fatal("%s: script contains more than 65,535 lines", g_id);
140	}
141	line_num++;
142	break;
143	default:
144	if (32 <= c && c <= 126) {
145	Stream_write_char(g_output, c);
146	}
147	else {
148	Stream_printf(g_output, "&#%d;", c);
149	}
150	break;
151	}
152	character_offset++;
153	}
154
155	static void mark_nontoken_chars(uint16_t end_line, uint16_t end_column) {
156	enum State {
157	STATE_NORMAL,
158	STATE_LINE_COMMENT,
159	STATE_MULTILINE_COMMENT
160	};
161
162	enum State state = STATE_NORMAL;
163	while (character_offset < g_num_characters) {
164	if (end_line != 0 && line_num > end_line) {
165	break;
166	}
167	else if (line_num == end_line && column_num >= end_column) {
168	break;
169	}
170
171	jschar c = g_characters[character_offset];
172	if (c == '\0') {
173	fatal("%s: script contains NULL character", g_id);
174	}
175
176	switch (state) {
177	case STATE_NORMAL:
178	if (c == '/' && character_offset + 1 < g_num_characters && g_characters[character_offset + 1] == '/') {
179	state = STATE_LINE_COMMENT;
180	}
181	else if (c == '/' && character_offset + 1 < g_num_characters && g_characters[character_offset + 1] == '*') {
182	state = STATE_MULTILINE_COMMENT;
183	output_character('/', CLASS_COMMENT);
184	output_character('*', CLASS_COMMENT);
185	continue;
186	}
187	break;
188	case STATE_LINE_COMMENT:
189	if (c == '\r' \|\| c == '\n' \|\| c == 0x2028 \|\| c == 0x2029) {
190	state = STATE_NORMAL;
191	}
192	break;
193	case STATE_MULTILINE_COMMENT:
194	if (c == '*' && character_offset + 1 < g_num_characters && g_characters[character_offset + 1] == '/') {
195	output_character('*', CLASS_COMMENT);
196	output_character('/', CLASS_COMMENT);
197	state = STATE_NORMAL;
198	continue;
199	}
200	break;
201	}
202
203	if (state == STATE_NORMAL) {
204	output_character(c, CLASS_NONE);
205	}
206	else {
207	output_character(c, CLASS_COMMENT);
208	}
209	}
210	}
211
212	void jscoverage_highlight_js(JSContext * context, const char * id, const jschar * characters, size_t num_characters, Stream * output) {
213	g_id = id;
214	g_characters = characters;
215	g_num_characters = num_characters;
216	g_output = output;
217
218	character_offset = 0;
219	line_num = 1;
220	column_num = 0;
221	current_class = CLASS_NONE;
222
223	/* tokenize the JavaScript */
224	JSTokenStream token_stream;
225	if (! js_InitTokenStream(context, &token_stream, characters, num_characters, NULL, NULL, 1)) {
226	fatal("cannot create token stream from JavaScript file %s", id);
227	}
228
229	for (;;) {
230	JSTokenType tt = js_GetToken(context, &token_stream);
231
232	if (tt == TOK_ERROR) {
233	fatal("JavaScript parse error: %s: line = %d, col = %d\n", id, line_num, column_num);
234	}
235
236	if (tt == TOK_EOF) {
237	mark_nontoken_chars(0, 0);
238	break;
239	}
240
241	/* mark the chars before the token */
242	JSToken t = CURRENT_TOKEN(&token_stream);
243	mark_nontoken_chars(t.pos.begin.lineno, t.pos.begin.index);
244
245	/* mark the token */
246	enum Class class_;
247	switch (tt) {
248	case TOK_ERROR:
249	case TOK_EOF:
250	abort();
251	case TOK_EOL:
252	class_ = CLASS_NONE;
253	token_stream.flags \|= TSF_OPERAND;
254	break;
255	case TOK_SEMI:
256	case TOK_COMMA:
257	case TOK_ASSIGN:
258	case TOK_HOOK:
259	case TOK_COLON:
260	case TOK_OR:
261	case TOK_AND:
262	case TOK_BITOR:
263	case TOK_BITXOR:
264	case TOK_BITAND:
265	case TOK_EQOP:
266	case TOK_RELOP:
267	case TOK_SHOP:
268	case TOK_PLUS:
269	case TOK_MINUS:
270	case TOK_STAR:
271	case TOK_DIVOP:
272	class_ = CLASS_SYMBOL;
273	token_stream.flags \|= TSF_OPERAND;
274	break;
275	case TOK_UNARYOP:
276	switch (t.t_op) {
277	case JSOP_NEG:
278	case JSOP_POS:
279	case JSOP_NOT:
280	case JSOP_BITNOT:
281	class_ = CLASS_SYMBOL;
282	token_stream.flags \|= TSF_OPERAND;
283	break;
284	case JSOP_TYPEOF:
285	class_ = CLASS_KEYWORD;
286	token_stream.flags \|= TSF_OPERAND;
287	break;
288	case JSOP_VOID:
289	class_ = CLASS_TYPE;
290	token_stream.flags \|= TSF_OPERAND;
291	break;
292	default:
293	abort();
294	}
295	break;
296	case TOK_INC:
297	case TOK_DEC:
298	class_ = CLASS_SYMBOL;
299	/* token_stream.flags does not change w.r.t. TSF_OPERAND */
300	break;
301	case TOK_DOT:
302	case TOK_LB:
303	class_ = CLASS_SYMBOL;
304	token_stream.flags \|= TSF_OPERAND;
305	break;
306	case TOK_RB:
307	class_ = CLASS_SYMBOL;
308	token_stream.flags &= ~TSF_OPERAND;
309	break;
310	case TOK_LC:
311	class_ = CLASS_CBRACKET;
312	token_stream.flags \|= TSF_OPERAND;
313	break;
314	case TOK_RC:
315	class_ = CLASS_CBRACKET;
316	token_stream.flags &= ~TSF_OPERAND;
317	break;
318	case TOK_LP:
319	class_ = CLASS_SYMBOL;
320	token_stream.flags \|= TSF_OPERAND;
321	break;
322	case TOK_RP:
323	class_ = CLASS_SYMBOL;
324	token_stream.flags &= ~TSF_OPERAND;
325	break;
326	case TOK_NAME:
327	class_ = CLASS_NONE;
328	token_stream.flags &= ~TSF_OPERAND;
329	if (js_PeekToken(context, &token_stream) == TOK_LP) {
330	/* function */
331	class_ = CLASS_NONE;
332	}
333	break;
334	case TOK_NUMBER:
335	class_ = CLASS_NUMBER;
336	token_stream.flags &= ~TSF_OPERAND;
337	break;
338	case TOK_STRING:
339	class_ = CLASS_STRING;
340	token_stream.flags &= ~TSF_OPERAND;
341	break;
342	case TOK_REGEXP:
343	class_ = CLASS_REGEXP;
344	token_stream.flags &= ~TSF_OPERAND;
345	break;
346	case TOK_PRIMARY:
347	switch (t.t_op) {
348	case JSOP_TRUE:
349	case JSOP_FALSE:
350	case JSOP_NULL:
351	case JSOP_THIS:
352	class_ = CLASS_KEYWORD;
353	token_stream.flags &= ~TSF_OPERAND;
354	break;
355	default:
356	abort();
357	}
358	break;
359	case TOK_FUNCTION:
360	class_ = CLASS_KEYWORD;
361	token_stream.flags \|= TSF_OPERAND;
362	break;
363	case TOK_IF:
364	case TOK_ELSE:
365	case TOK_SWITCH:
366	case TOK_CASE:
367	case TOK_DEFAULT:
368	case TOK_WHILE:
369	case TOK_DO:
370	case TOK_FOR:
371	case TOK_BREAK:
372	case TOK_CONTINUE:
373	case TOK_IN:
374	case TOK_VAR:
375	case TOK_WITH:
376	case TOK_RETURN:
377	case TOK_NEW:
378	case TOK_DELETE:
379	token_stream.flags \|= TSF_OPERAND;
380	class_ = CLASS_KEYWORD;
381	break;
382	case TOK_DEFSHARP:
383	case TOK_USESHARP:
384	abort();
385	break;
386	case TOK_TRY:
387	case TOK_CATCH:
388	case TOK_FINALLY:
389	case TOK_THROW:
390	case TOK_INSTANCEOF:
391	case TOK_DEBUGGER:
392	token_stream.flags \|= TSF_OPERAND;
393	class_ = CLASS_KEYWORD;
394	break;
395	case TOK_XMLSTAGO:
396	case TOK_XMLETAGO:
397	case TOK_XMLPTAGC:
398	case TOK_XMLTAGC:
399	case TOK_XMLNAME:
400	case TOK_XMLATTR:
401	case TOK_XMLSPACE:
402	case TOK_XMLTEXT:
403	case TOK_XMLCOMMENT:
404	case TOK_XMLCDATA:
405	case TOK_XMLPI:
406	case TOK_AT:
407	case TOK_DBLCOLON:
408	case TOK_ANYNAME:
409	case TOK_DBLDOT:
410	case TOK_FILTER:
411	case TOK_XMLELEM:
412	case TOK_XMLLIST:
413	abort();
414	break;
415	case TOK_YIELD:
416	token_stream.flags \|= TSF_OPERAND;
417	class_ = CLASS_KEYWORD;
418	break;
419	case TOK_ARRAYCOMP:
420	case TOK_ARRAYPUSH:
421	case TOK_LEXICALSCOPE:
422	abort();
423	break;
424	case TOK_LET:
425	token_stream.flags \|= TSF_OPERAND;
426	class_ = CLASS_KEYWORD;
427	break;
428	case TOK_SEQ:
429	case TOK_FORHEAD:
430	case TOK_RESERVED:
431	case TOK_LIMIT:
432	abort();
433	break;
434	default:
435	abort();
436	break;
437	}
438
439	uint16_t start_line = t.pos.begin.lineno;
440	uint16_t end_line = t.pos.end.lineno;
441	uint16_t start_column = t.pos.begin.index;
442	uint16_t end_column = t.pos.end.index;
443	assert(line_num == start_line);
444	assert(column_num == start_column);
445	if (start_line == end_line && start_column >= end_column) {
446	fatal("%s: script contains line with more than 65,535 characters", id);
447	}
448	for (;;) {
449	assert(character_offset < num_characters);
450	jschar c = characters[character_offset];
451	if (tt == TOK_STRING && c == '\\') {
452	output_character(c, CLASS_SPECIALCHAR);
453	assert(character_offset < num_characters);
454	c = characters[character_offset];
455	output_character(c, CLASS_SPECIALCHAR);
456	}
457	else {
458	output_character(c, class_);
459	}
460
461	if (line_num > end_line) {
462	break;
463	}
464	else if (line_num == end_line && column_num >= end_column) {
465	break;
466	}
467	}
468
469	assert(line_num == end_line);
470	assert(column_num = end_column);
471	}
472
473	if (current_class != CLASS_NONE) {
474	output_character('\n', CLASS_NONE);
475	}
476
477	js_CloseTokenStream(context, &token_stream);
478	}