xref: /OpenGrok/opengrok-indexer/src/main/jflex/analysis/javascript/ECMAScriptProductions.lexh (revision d219b4cea555a12b602d2d5518daa22134ad4879) 
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * See LICENSE.txt included in this distribution for the specific
9 * language governing permissions and limitations under the License.
10 *
11 * When distributing Covered Code, include this CDDL HEADER in each
12 * file and include the License file at LICENSE.txt.
13 * If applicable, add the following below this CDDL HEADER, with the
14 * fields enclosed by brackets "[]" replaced with your own identifying
15 * information: Portions Copyright [yyyy] [name of copyright owner]
16 *
17 * CDDL HEADER END
18 */
19
20/*
21 * Copyright (c) 2006, 2017, Oracle and/or its affiliates. All rights reserved.
22 * Portions Copyright (c) 2017, 2019, Chris Fraire <cfraire@me.com>.
23 */
24
25<YYINITIAL> {
26
27    {Identifier}    {
28        chkLOC();
29        if (offerSymbol(yytext(), 0, false) && returnOnSymbol()) {
30            return yystate();
31        }
32    }
33
34    {NumericLiteral}    {
35        chkLOC();
36        onDisjointSpanChanged(HtmlConsts.NUMBER_CLASS, yychar);
37        offer(yytext());
38        onDisjointSpanChanged(null, yychar);
39    }
40
41    \"    {
42        chkLOC();
43        yypush(STRING);
44        onDisjointSpanChanged(HtmlConsts.STRING_CLASS, yychar);
45        offer(yytext());
46    }
47
48    \'    {
49        chkLOC();
50        yypush(QSTRING);
51        onDisjointSpanChanged(HtmlConsts.STRING_CLASS, yychar);
52        offer(yytext());
53    }
54
55    \`    {
56        chkLOC();
57        yypush(TEMPLATE);
58        onDisjointSpanChanged(HtmlConsts.STRING_CLASS, yychar);
59        offer(yytext());
60    }
61
62    "/*"    {
63        yypush(COMMENT);
64        onDisjointSpanChanged(HtmlConsts.COMMENT_CLASS, yychar);
65        offer(yytext());
66    }
67
68    "//"    {
69        yypush(SCOMMENT);
70        onDisjointSpanChanged(HtmlConsts.COMMENT_CLASS, yychar);
71        offer(yytext());
72    }
73
74    /*
75     * Literal regexps are in conflict with division "/" and are detected
76     * in javascript based on context and when ambiguous, the division has
77     * a higher precedence. We do a best-effort context matching for
78     * preceding "=" (variable), "(" (function call) or ":" (object).
79     */
80    [:=(] {WhspChar}* "/"    {
81        String capture = yytext();
82        yypush(REGEXP);
83        offer(capture.substring(0, capture.length() - 1));
84        onDisjointSpanChanged(HtmlConsts.STRING_CLASS, yychar + yylength() - 1);
85        offer("/");
86    }
87
88    [\{\}]    {
89        chkLOC();
90        String capture = yytext();
91        if (notInTemplateOrSubstitutionDoesNotEnd(capture)) {
92            offer(capture);
93        }
94    }
95}
96
97<STRING> {
98    \\[\"\\]    {
99        chkLOC();
100        offer(yytext());
101    }
102
103    \"    {
104        chkLOC();
105        offer(yytext());
106        onDisjointSpanChanged(null, yychar);
107        yypop();
108    }
109}
110
111<REGEXP> {
112    \\[/]    {
113        chkLOC();
114        offer(yytext());
115    }
116    \/[gimsuy]*    {
117        chkLOC();
118        offer("/");
119        onDisjointSpanChanged(null, yychar);
120        offer(yytext().substring(1));
121        yypop();
122    }
123}
124
125<QSTRING> {
126    \\[\'\\]    {
127        chkLOC();
128        offer(yytext());
129    }
130
131    \'    {
132        chkLOC();
133        offer(yytext());
134        onDisjointSpanChanged(null, yychar);
135        yypop();
136    }
137}
138
139<TEMPLATE> {
140    \\[\`\$\\]    {
141        chkLOC();
142        offer(yytext());
143    }
144
145    \`    {
146        chkLOC();
147        offer(yytext());
148        onDisjointSpanChanged(null, yychar);
149        yypop();
150    }
151
152    "${"    {
153        chkLOC();
154        offer(yytext());
155        onDisjointSpanChanged(null, yychar);
156        pushData();
157        substitutionOp();
158        yypush(YYINITIAL);
159    }
160}
161
162<COMMENT> {
163    "*/"    {
164        offer(yytext());
165        onDisjointSpanChanged(null, yychar);
166        yypop();
167    }
168}
169
170<SCOMMENT> {
171    {WhspChar}*{EOL}    {
172        onDisjointSpanChanged(null, yychar);
173        yypop();
174        onEndOfLineMatched(yytext(), yychar);
175    }
176}
177
178<YYINITIAL, STRING, REGEXP, COMMENT, SCOMMENT, QSTRING, TEMPLATE> {
179    {WhspChar}*{EOL}    {
180        onEndOfLineMatched(yytext(), yychar);
181    }
182    [[\s]--[\n]]    {
183        offer(yytext());
184    }
185    [^\n]    {
186        chkLOC();
187        offer(yytext());
188    }
189}
190
191<STRING, COMMENT, SCOMMENT, QSTRING, TEMPLATE> {
192    {FPath}    {
193        chkLOC();
194        onPathlikeMatched(yytext(), '/', false, yychar);
195    }
196
197    {File}    {
198        chkLOC();
199        onFilelikeMatched(yytext(), yychar);
200    }
201
202    {FNameChar}+ "@" {FNameChar}+ "." {FNameChar}+    {
203        chkLOC();
204        onEmailAddressMatched(yytext(), yychar);
205    }
206}
207
208<STRING, SCOMMENT, TEMPLATE> {
209    {BrowseableURI}    {
210        chkLOC();
211        onUriMatched(yytext(), yychar);
212    }
213}
214
215<COMMENT> {
216    {BrowseableURI}    {
217        onUriMatched(yytext(), yychar, StringUtils.END_C_COMMENT);
218    }
219}
220
221<QSTRING> {
222    {BrowseableURI}    {
223        chkLOC();
224        onUriMatched(yytext(), yychar, StringUtils.APOS_NO_BSESC);
225    }
226}
227