1 /*******************************************************************************
2 Copyright (c) 2016, Michael Wallner <mike@php.net>.
5 Redistribution and use in source and binary forms, with or without
6 modification, are permitted provided that the following conditions are met:
8 * Redistributions of source code must retain the above copyright notice,
9 this list of conditions and the following disclaimer.
10 * Redistributions in binary form must reproduce the above copyright
11 notice, this list of conditions and the following disclaimer in the
12 documentation and/or other materials provided with the distribution.
14 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
15 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
18 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
20 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
21 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
22 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 *******************************************************************************/
29 # include "php_config.h"
38 # define YYMAXFILL 256
41 size_t psi_parser_maxfill(void) {
49 #define NEWTOKEN(t) do { \
50 if (t == PSI_T_COMMENT || t == PSI_T_WHITESPACE) { \
51 token = psi_token_init(t, "", 0, tok - eol + 1, I->lines, I->file); \
53 token = psi_token_init(t, tok, cur - tok, tok - eol + 1, I->lines, I->file); \
55 tokens = psi_plist_add(tokens, &token); \
57 PSI_DEBUG_PRINT(P, "PSI: scanned < "); \
58 PSI_DEBUG_DUMP(P, psi_token_dump, token); \
62 #define CHECKEOF() if (cur >= lim - YYMAXFILL) goto done
64 struct psi_plist *psi_parser_scan(struct psi_parser *P, struct psi_parser_input *I)
66 struct psi_plist *tokens;
67 struct psi_token *token;
68 const char *tok, *cur, *lim, *mrk, *eol, *ctxmrk;
73 PSI_DEBUG_PRINT(P, "PSI: scanning %s\n", I->file->val);
75 tok = mrk = eol = cur = I->buffer;
76 lim = I->buffer + I->length + YYMAXFILL;
78 tokens = psi_plist_init((psi_plist_dtor) psi_token_free);
90 re2c:define:YYCTYPE = "unsigned char";
91 re2c:define:YYCURSOR = cur;
92 re2c:define:YYLIMIT = lim;
93 re2c:define:YYMARKER = mrk;
94 re2c:define:YYCTXMARKER = ctxmrk;
95 re2c:define:YYFILL = "CHECKEOF();";
96 re2c:yyfill:parameter = 0;
98 W = [a-zA-Z0-9_\x80-\xff];
101 NAME = [a-zA-Z_\x80-\xff] W*;
102 NSNAME = (NAME)? ("\\" NAME)+;
103 DOLLAR_NAME = '$' W+;
104 CPP_HEADER = "<" [-._/a-zA-Z0-9]+ ">";
105 CPP_ATTRIBUTE = "__attribute__" SP* "((";
107 DEC_CONST = [1-9] [0-9]*;
108 OCT_CONST = "0" [0-7]*;
109 HEX_CONST = '0x' [0-9a-fA-F]+;
110 INT_CONST = (DEC_CONST | OCT_CONST | HEX_CONST);
112 FLT_HEX_CONST = HEX_CONST ("." [0-9a-fA-F]*)? 'p' [+-]? [0-9]+;
113 FLT_DEC_NUM = "0" | DEC_CONST;
114 FLT_DEC_CONST = (FLT_DEC_NUM ("." [0-9]*)? 'e' [+-]? [0-9]+) | (FLT_DEC_NUM "." [0-9]*) | ("." [0-9]+);
115 FLT_CONST = (FLT_DEC_CONST | FLT_HEX_CONST);
117 INT_CONST { NEWTOKEN(PSI_T_NUMBER); token->flags = PSI_NUMBER_INT; goto start; }
118 INT_CONST / 'u' { NEWTOKEN(PSI_T_NUMBER); token->flags = PSI_NUMBER_INT | PSI_NUMBER_U; cur += 1; goto start; }
119 INT_CONST / 'l' { NEWTOKEN(PSI_T_NUMBER); token->flags = PSI_NUMBER_INT | PSI_NUMBER_L; cur += 1; goto start; }
120 INT_CONST / ('lu' | 'ul') { NEWTOKEN(PSI_T_NUMBER); token->flags = PSI_NUMBER_INT | PSI_NUMBER_UL; cur += 2; goto start; }
121 INT_CONST / ('llu' | 'ull') { NEWTOKEN(PSI_T_NUMBER); token->flags = PSI_NUMBER_INT | PSI_NUMBER_ULL; cur += 3; goto start; }
123 FLT_CONST { NEWTOKEN(PSI_T_NUMBER); token->flags = PSI_NUMBER_FLT; goto start; }
124 FLT_CONST / 'f' { NEWTOKEN(PSI_T_NUMBER); token->flags = PSI_NUMBER_FLT | PSI_NUMBER_F; cur += 1; goto start; }
125 FLT_CONST / 'l' { NEWTOKEN(PSI_T_NUMBER); token->flags = PSI_NUMBER_FLT | PSI_NUMBER_L; cur += 1; goto start; }
126 FLT_CONST / 'df' { NEWTOKEN(PSI_T_NUMBER); token->flags = PSI_NUMBER_FLT | PSI_NUMBER_DF; cur += 2; goto start; }
127 FLT_CONST / 'dd' { NEWTOKEN(PSI_T_NUMBER); token->flags = PSI_NUMBER_FLT | PSI_NUMBER_DD; cur += 2; goto start; }
128 FLT_CONST / 'dl' { NEWTOKEN(PSI_T_NUMBER); token->flags = PSI_NUMBER_FLT | PSI_NUMBER_DL; cur += 2; goto start; }
130 "'" { escaped = false; tok += 1; goto character; }
131 "\"" { escaped = false; tok += 1; goto string; }
132 "u8" / "\"" { char_width = 1; }
133 "u" / ['"] { char_width = 2; }
134 "U" / ['"] { char_width = 4; }
135 "L" / ['"] { char_width = sizeof(wchar_t)/8; }
137 "/*" { goto comment; }
138 "//" { goto comment_sl; }
140 "##" { NEWTOKEN(PSI_T_CPP_PASTE); goto start; }
141 "#" { NEWTOKEN(PSI_T_HASH); goto start; }
142 "(" { NEWTOKEN(PSI_T_LPAREN); goto start; }
143 ")" { NEWTOKEN(PSI_T_RPAREN); goto start; }
144 ";" { NEWTOKEN(PSI_T_EOS); goto start; }
145 "," { NEWTOKEN(PSI_T_COMMA); goto start; }
146 ":" { NEWTOKEN(PSI_T_COLON); goto start; }
147 "{" { NEWTOKEN(PSI_T_LBRACE); goto start; }
148 "}" { NEWTOKEN(PSI_T_RBRACE); goto start; }
149 "[" { NEWTOKEN(PSI_T_LBRACKET); goto start; }
150 "]" { NEWTOKEN(PSI_T_RBRACKET); goto start; }
151 "!=" { NEWTOKEN(PSI_T_CMP_NE); goto start; }
152 "==" { NEWTOKEN(PSI_T_CMP_EQ); goto start; }
153 "&&" { NEWTOKEN(PSI_T_AND); goto start; }
154 "||" { NEWTOKEN(PSI_T_OR); goto start; }
155 "=" { NEWTOKEN(PSI_T_EQUALS); goto start; }
156 "*" { NEWTOKEN(PSI_T_ASTERISK); goto start; }
157 "~" { NEWTOKEN(PSI_T_TILDE); goto start; }
158 "!" { NEWTOKEN(PSI_T_NOT); goto start; }
159 "%" { NEWTOKEN(PSI_T_MODULO); goto start; }
160 "&" { NEWTOKEN(PSI_T_AMPERSAND); goto start; }
161 "+" { NEWTOKEN(PSI_T_PLUS); goto start; }
162 "-" { NEWTOKEN(PSI_T_MINUS); goto start; }
163 "/" { NEWTOKEN(PSI_T_SLASH); goto start; }
164 "\\" { NEWTOKEN(PSI_T_BSLASH); goto start; }
165 "|" { NEWTOKEN(PSI_T_PIPE); goto start; }
166 "^" { NEWTOKEN(PSI_T_CARET); goto start; }
167 "<<" { NEWTOKEN(PSI_T_LSHIFT); goto start; }
168 ">>" { NEWTOKEN(PSI_T_RSHIFT); goto start; }
169 "<=" { NEWTOKEN(PSI_T_CMP_LE); goto start; }
170 ">=" { NEWTOKEN(PSI_T_CMP_GE); goto start; }
171 "<" { NEWTOKEN(PSI_T_LCHEVR); goto start; }
172 ">" { NEWTOKEN(PSI_T_RCHEVR); goto start; }
173 "." { NEWTOKEN(PSI_T_PERIOD); goto start; }
174 "..." { NEWTOKEN(PSI_T_ELLIPSIS); goto start; }
175 "?" { NEWTOKEN(PSI_T_IIF); goto start; }
176 "pragma" { NEWTOKEN(PSI_T_PRAGMA); goto start; }
177 "pragma" W+ "once" { NEWTOKEN(PSI_T_PRAGMA_ONCE); goto start; }
178 "__"? "inline" { NEWTOKEN(PSI_T_CPP_INLINE); goto start; }
179 "__restrict" { NEWTOKEN(PSI_T_CPP_RESTRICT); goto start; }
180 "__extension__" { NEWTOKEN(PSI_T_CPP_EXTENSION); goto start; }
181 "__asm" ("__")? { NEWTOKEN(PSI_T_CPP_ASM); goto start; }
182 "volatile" { NEWTOKEN(PSI_T_VOLATILE); goto start; }
183 "sizeof" { NEWTOKEN(PSI_T_SIZEOF); goto start; }
184 "line" { NEWTOKEN(PSI_T_LINE); goto start; }
185 "typedef" { NEWTOKEN(PSI_T_TYPEDEF); goto start; }
186 "struct" { NEWTOKEN(PSI_T_STRUCT); goto start; }
187 "union" { NEWTOKEN(PSI_T_UNION); goto start; }
188 "enum" { NEWTOKEN(PSI_T_ENUM); goto start; }
189 "const" { NEWTOKEN(PSI_T_CONST); goto start; }
190 "void" { NEWTOKEN(PSI_T_VOID); goto start; }
191 "bool" { NEWTOKEN(PSI_T_BOOL); goto start; }
192 "char" { NEWTOKEN(PSI_T_CHAR); goto start; }
193 "short" { NEWTOKEN(PSI_T_SHORT); goto start; }
194 "int" { NEWTOKEN(PSI_T_INT); goto start; }
195 "long" { NEWTOKEN(PSI_T_LONG); goto start; }
196 "float" { NEWTOKEN(PSI_T_FLOAT); goto start; }
197 "double" { NEWTOKEN(PSI_T_DOUBLE); goto start; }
198 "unsigned" { NEWTOKEN(PSI_T_UNSIGNED); goto start; }
199 "signed" { NEWTOKEN(PSI_T_SIGNED); goto start; }
200 'IF' { NEWTOKEN(PSI_T_IF); goto start; }
201 'IFDEF' { NEWTOKEN(PSI_T_IFDEF); goto start; }
202 'IFNDEF' { NEWTOKEN(PSI_T_IFNDEF); goto start; }
203 'ELSE' { NEWTOKEN(PSI_T_ELSE); goto start; }
204 'ELIF' { NEWTOKEN(PSI_T_ELIF); goto start; }
205 'ENDIF' { NEWTOKEN(PSI_T_ENDIF); goto start; }
206 'DEFINE' { NEWTOKEN(PSI_T_DEFINE); goto start; }
207 'DEFINED' { NEWTOKEN(PSI_T_DEFINED); goto start; }
208 'UNDEF' { NEWTOKEN(PSI_T_UNDEF); goto start; }
209 'WARNING' { NEWTOKEN(PSI_T_WARNING); goto start; }
210 'ERROR' { NEWTOKEN(PSI_T_ERROR); goto start; }
211 'INCLUDE' { NEWTOKEN(PSI_T_INCLUDE); goto start; }
212 'INCLUDE_NEXT' { NEWTOKEN(PSI_T_INCLUDE_NEXT); goto start; }
213 'TRUE' { NEWTOKEN(PSI_T_TRUE); goto start; }
214 'FALSE' { NEWTOKEN(PSI_T_FALSE); goto start; }
215 'NULL' { NEWTOKEN(PSI_T_NULL); goto start; }
216 'MIXED' { NEWTOKEN(PSI_T_MIXED); goto start; }
217 'CALLABLE' { NEWTOKEN(PSI_T_CALLABLE); goto start; }
218 'STRING' { NEWTOKEN(PSI_T_STRING); goto start; }
219 'ARRAY' { NEWTOKEN(PSI_T_ARRAY); goto start; }
220 'OBJECT' { NEWTOKEN(PSI_T_OBJECT); goto start; }
221 'CALLBACK' { NEWTOKEN(PSI_T_CALLBACK); goto start; }
222 'STATIC' { NEWTOKEN(PSI_T_STATIC); goto start; }
223 'FUNCTION' { NEWTOKEN(PSI_T_FUNCTION); goto start; }
224 'LIB' { NEWTOKEN(PSI_T_LIB); goto start; }
225 'LET' { NEWTOKEN(PSI_T_LET); goto start; }
226 'SET' { NEWTOKEN(PSI_T_SET); goto start; }
227 'PRE_ASSERT' { NEWTOKEN(PSI_T_PRE_ASSERT); goto start; }
228 'POST_ASSERT' { NEWTOKEN(PSI_T_POST_ASSERT); goto start; }
229 'RETURN' { NEWTOKEN(PSI_T_RETURN); goto start; }
230 'AS' { NEWTOKEN(PSI_T_AS); goto start; }
231 'FREE' { NEWTOKEN(PSI_T_FREE); goto start; }
232 'TEMP' { NEWTOKEN(PSI_T_TEMP); goto start; }
233 'STRLEN' { NEWTOKEN(PSI_T_STRLEN); goto start; }
234 'STRVAL' { NEWTOKEN(PSI_T_STRVAL); goto start; }
235 'PATHVAL' { NEWTOKEN(PSI_T_PATHVAL); goto start; }
236 'INTVAL' { NEWTOKEN(PSI_T_INTVAL); goto start; }
237 'FLOATVAL' { NEWTOKEN(PSI_T_FLOATVAL); goto start; }
238 'BOOLVAL' { NEWTOKEN(PSI_T_BOOLVAL); goto start; }
239 'ARRVAL' { NEWTOKEN(PSI_T_ARRVAL); goto start; }
240 'OBJVAL' { NEWTOKEN(PSI_T_OBJVAL); goto start; }
241 'ZVAL' { NEWTOKEN(PSI_T_ZVAL); goto start; }
242 'COUNT' { NEWTOKEN(PSI_T_COUNT); goto start; }
243 'CALLOC' { NEWTOKEN(PSI_T_CALLOC); goto start; }
244 'TO_OBJECT' { NEWTOKEN(PSI_T_TO_OBJECT); goto start; }
245 'TO_ARRAY' { NEWTOKEN(PSI_T_TO_ARRAY); goto start; }
246 'TO_STRING' { NEWTOKEN(PSI_T_TO_STRING); goto start; }
247 'TO_INT' { NEWTOKEN(PSI_T_TO_INT); goto start; }
248 'TO_FLOAT' { NEWTOKEN(PSI_T_TO_FLOAT); goto start; }
249 'TO_BOOL' { NEWTOKEN(PSI_T_TO_BOOL); goto start; }
250 NAME { NEWTOKEN(PSI_T_NAME); goto start; }
251 NSNAME { NEWTOKEN(PSI_T_NSNAME); goto start; }
252 DOLLAR_NAME { NEWTOKEN(PSI_T_DOLLAR_NAME); goto start; }
253 CPP_HEADER { tok += 1; cur -= 1; NEWTOKEN(PSI_T_CPP_HEADER); cur += 1; goto start; }
254 CPP_ATTRIBUTE { parens = 2; goto cpp_attribute; }
255 EOL { NEWTOKEN(PSI_T_EOL); NEWLINE(); goto start; }
256 SP+ { NEWTOKEN(PSI_T_WHITESPACE); goto start; }
257 [^] { CHECKEOF(); NEWTOKEN(-2); goto error; }
258 * { CHECKEOF(); NEWTOKEN(-1); goto error; }
265 EOL { NEWLINE(); goto character; }
266 "\\" { escaped = !escaped; goto character; }
273 NEWTOKEN(PSI_T_QUOTED_CHAR);
275 token->flags = char_width;
278 * { escaped = false; goto character; }
285 EOL { NEWLINE(); goto string; }
286 "\\" { escaped = !escaped; goto string; }
293 NEWTOKEN(PSI_T_QUOTED_STRING);
295 token->flags = char_width;
298 * { escaped = false; goto string; }
305 EOL { NEWLINE(); goto comment; }
306 "*" "/" { NEWTOKEN(PSI_T_COMMENT); goto start; }
314 EOL { NEWTOKEN(PSI_T_COMMENT); tok = cur - 1; NEWTOKEN(PSI_T_EOL); NEWLINE(); goto start; }
315 * { goto comment_sl; }
323 "(" { ++parens; goto cpp_attribute; }
324 ")" { if (parens == 1) { NEWTOKEN(PSI_T_CPP_ATTRIBUTE); goto start; } else { --parens; goto cpp_attribute; } }
325 EOL { NEWLINE(); goto cpp_attribute; }
326 * { goto cpp_attribute; }
331 P->error(PSI_DATA(P), token, PSI_WARNING, "PSI syntax error: unexpected input (%d) '%.*s' at col %tu",
332 token->type, token->text->len, token->text->val, tok - eol + 1);
333 psi_plist_free(tokens);
338 PSI_DEBUG_PRINT(P, "PSI: EOF cur=%p lim=%p\n", cur, lim);