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, lines, I->file); \
53 token = psi_token_init(t, tok, cur - tok, tok - eol + 1, 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;
69 unsigned char_width, parens, lines = 1;
72 PSI_DEBUG_PRINT(P, "PSI: scanning %s\n", I->file->val);
74 tok = mrk = eol = cur = I->buffer;
75 lim = I->buffer + I->length + YYMAXFILL;
76 tokens = psi_plist_init((psi_plist_dtor) psi_token_free);
88 re2c:define:YYCTYPE = "unsigned char";
89 re2c:define:YYCURSOR = cur;
90 re2c:define:YYLIMIT = lim;
91 re2c:define:YYMARKER = mrk;
92 re2c:define:YYCTXMARKER = ctxmrk;
93 re2c:define:YYFILL = "CHECKEOF();";
94 re2c:yyfill:parameter = 0;
96 W = [a-zA-Z0-9_\x80-\xff];
99 NAME = [a-zA-Z_\x80-\xff] W*;
100 NSNAME = (NAME)? ("\\" NAME)+;
101 DOLLAR_NAME = '$' W+;
102 CPP_HEADER = "<" [-._/a-zA-Z0-9]+ ">";
103 CPP_ATTRIBUTE = "__attribute__" SP* "((";
105 DEC_CONST = [1-9] [0-9]*;
106 OCT_CONST = "0" [0-7]*;
107 HEX_CONST = '0x' [0-9a-fA-F]+;
108 INT_CONST = (DEC_CONST | OCT_CONST | HEX_CONST);
110 FLT_HEX_CONST = HEX_CONST ("." [0-9a-fA-F]*)? 'p' [+-]? [0-9]+;
111 FLT_DEC_NUM = "0" | DEC_CONST;
112 FLT_DEC_CONST = (FLT_DEC_NUM ("." [0-9]*)? 'e' [+-]? [0-9]+) | (FLT_DEC_NUM "." [0-9]*) | ("." [0-9]+);
113 FLT_CONST = (FLT_DEC_CONST | FLT_HEX_CONST);
115 INT_CONST { NEWTOKEN(PSI_T_NUMBER); token->flags = PSI_NUMBER_INT; goto start; }
116 INT_CONST / 'u' { NEWTOKEN(PSI_T_NUMBER); token->flags = PSI_NUMBER_INT | PSI_NUMBER_U; cur += 1; goto start; }
117 INT_CONST / 'l' { NEWTOKEN(PSI_T_NUMBER); token->flags = PSI_NUMBER_INT | PSI_NUMBER_L; cur += 1; goto start; }
118 INT_CONST / ('lu' | 'ul') { NEWTOKEN(PSI_T_NUMBER); token->flags = PSI_NUMBER_INT | PSI_NUMBER_UL; cur += 2; goto start; }
119 INT_CONST / ('llu' | 'ull') { NEWTOKEN(PSI_T_NUMBER); token->flags = PSI_NUMBER_INT | PSI_NUMBER_ULL; cur += 3; goto start; }
121 FLT_CONST { NEWTOKEN(PSI_T_NUMBER); token->flags = PSI_NUMBER_FLT; goto start; }
122 FLT_CONST / 'f' { NEWTOKEN(PSI_T_NUMBER); token->flags = PSI_NUMBER_FLT | PSI_NUMBER_F; cur += 1; goto start; }
123 FLT_CONST / 'l' { NEWTOKEN(PSI_T_NUMBER); token->flags = PSI_NUMBER_FLT | PSI_NUMBER_L; cur += 1; goto start; }
124 FLT_CONST / 'df' { NEWTOKEN(PSI_T_NUMBER); token->flags = PSI_NUMBER_FLT | PSI_NUMBER_DF; cur += 2; goto start; }
125 FLT_CONST / 'dd' { NEWTOKEN(PSI_T_NUMBER); token->flags = PSI_NUMBER_FLT | PSI_NUMBER_DD; cur += 2; goto start; }
126 FLT_CONST / 'dl' { NEWTOKEN(PSI_T_NUMBER); token->flags = PSI_NUMBER_FLT | PSI_NUMBER_DL; cur += 2; goto start; }
128 "'" { escaped = false; tok += 1; goto character; }
129 "\"" { escaped = false; tok += 1; goto string; }
130 "u8" / "\"" { char_width = 1; }
131 "u" / ['"] { char_width = 2; }
132 "U" / ['"] { char_width = 4; }
133 "L" / ['"] { char_width = sizeof(wchar_t); }
135 "/*" { goto comment; }
136 "//" { goto comment_sl; }
138 "##" { NEWTOKEN(PSI_T_CPP_PASTE); goto start; }
139 "#" { NEWTOKEN(PSI_T_HASH); goto start; }
140 "(" { NEWTOKEN(PSI_T_LPAREN); goto start; }
141 ")" { NEWTOKEN(PSI_T_RPAREN); goto start; }
142 ";" { NEWTOKEN(PSI_T_EOS); goto start; }
143 "," { NEWTOKEN(PSI_T_COMMA); goto start; }
144 ":" { NEWTOKEN(PSI_T_COLON); goto start; }
145 "{" { NEWTOKEN(PSI_T_LBRACE); goto start; }
146 "}" { NEWTOKEN(PSI_T_RBRACE); goto start; }
147 "[" { NEWTOKEN(PSI_T_LBRACKET); goto start; }
148 "]" { NEWTOKEN(PSI_T_RBRACKET); goto start; }
149 "!=" { NEWTOKEN(PSI_T_CMP_NE); goto start; }
150 "==" { NEWTOKEN(PSI_T_CMP_EQ); goto start; }
151 "&&" { NEWTOKEN(PSI_T_AND); goto start; }
152 "||" { NEWTOKEN(PSI_T_OR); goto start; }
153 "=" { NEWTOKEN(PSI_T_EQUALS); goto start; }
154 "*" { NEWTOKEN(PSI_T_ASTERISK); goto start; }
155 "~" { NEWTOKEN(PSI_T_TILDE); goto start; }
156 "!" { NEWTOKEN(PSI_T_NOT); goto start; }
157 "%" { NEWTOKEN(PSI_T_MODULO); goto start; }
158 "&" { NEWTOKEN(PSI_T_AMPERSAND); goto start; }
159 "+" { NEWTOKEN(PSI_T_PLUS); goto start; }
160 "-" { NEWTOKEN(PSI_T_MINUS); goto start; }
161 "/" { NEWTOKEN(PSI_T_SLASH); goto start; }
162 "\\" { NEWTOKEN(PSI_T_BSLASH); goto start; }
163 "|" { NEWTOKEN(PSI_T_PIPE); goto start; }
164 "^" { NEWTOKEN(PSI_T_CARET); goto start; }
165 "<<" { NEWTOKEN(PSI_T_LSHIFT); goto start; }
166 ">>" { NEWTOKEN(PSI_T_RSHIFT); goto start; }
167 "<=" { NEWTOKEN(PSI_T_CMP_LE); goto start; }
168 ">=" { NEWTOKEN(PSI_T_CMP_GE); goto start; }
169 "<" { NEWTOKEN(PSI_T_LCHEVR); goto start; }
170 ">" { NEWTOKEN(PSI_T_RCHEVR); goto start; }
171 "." { NEWTOKEN(PSI_T_PERIOD); goto start; }
172 "..." { NEWTOKEN(PSI_T_ELLIPSIS); goto start; }
173 "?" { NEWTOKEN(PSI_T_IIF); goto start; }
174 "pragma" { NEWTOKEN(PSI_T_PRAGMA); goto start; }
175 "__"? "inline" { NEWTOKEN(PSI_T_CPP_INLINE); goto start; }
176 "__restrict" { NEWTOKEN(PSI_T_CPP_RESTRICT); goto start; }
177 "__extension__" { NEWTOKEN(PSI_T_CPP_EXTENSION); goto start; }
178 "__asm" ("__")? { NEWTOKEN(PSI_T_CPP_ASM); goto start; }
179 "volatile" { NEWTOKEN(PSI_T_VOLATILE); goto start; }
180 "sizeof" { NEWTOKEN(PSI_T_SIZEOF); goto start; }
181 "line" { NEWTOKEN(PSI_T_LINE); goto start; }
182 "typedef" { NEWTOKEN(PSI_T_TYPEDEF); goto start; }
183 "struct" { NEWTOKEN(PSI_T_STRUCT); goto start; }
184 "union" { NEWTOKEN(PSI_T_UNION); goto start; }
185 "enum" { NEWTOKEN(PSI_T_ENUM); goto start; }
186 "const" { NEWTOKEN(PSI_T_CONST); goto start; }
187 "void" { NEWTOKEN(PSI_T_VOID); goto start; }
188 "bool" { NEWTOKEN(PSI_T_BOOL); goto start; }
189 "char" { NEWTOKEN(PSI_T_CHAR); goto start; }
190 "short" { NEWTOKEN(PSI_T_SHORT); goto start; }
191 "int" { NEWTOKEN(PSI_T_INT); goto start; }
192 "long" { NEWTOKEN(PSI_T_LONG); goto start; }
193 "float" { NEWTOKEN(PSI_T_FLOAT); goto start; }
194 "double" { NEWTOKEN(PSI_T_DOUBLE); goto start; }
195 "unsigned" { NEWTOKEN(PSI_T_UNSIGNED); goto start; }
196 "signed" { NEWTOKEN(PSI_T_SIGNED); goto start; }
197 'IF' { NEWTOKEN(PSI_T_IF); goto start; }
198 'IFDEF' { NEWTOKEN(PSI_T_IFDEF); goto start; }
199 'IFNDEF' { NEWTOKEN(PSI_T_IFNDEF); goto start; }
200 'ELSE' { NEWTOKEN(PSI_T_ELSE); goto start; }
201 'ELIF' { NEWTOKEN(PSI_T_ELIF); goto start; }
202 'ENDIF' { NEWTOKEN(PSI_T_ENDIF); goto start; }
203 'DEFINE' { NEWTOKEN(PSI_T_DEFINE); goto start; }
204 'DEFINED' { NEWTOKEN(PSI_T_DEFINED); goto start; }
205 'UNDEF' { NEWTOKEN(PSI_T_UNDEF); goto start; }
206 'WARNING' { NEWTOKEN(PSI_T_WARNING); goto start; }
207 'ERROR' { NEWTOKEN(PSI_T_ERROR); goto start; }
208 'INCLUDE' { NEWTOKEN(PSI_T_INCLUDE); goto start; }
209 'INCLUDE_NEXT' { NEWTOKEN(PSI_T_INCLUDE_NEXT); goto start; }
210 'TRUE' { NEWTOKEN(PSI_T_TRUE); goto start; }
211 'FALSE' { NEWTOKEN(PSI_T_FALSE); goto start; }
212 'NULL' { NEWTOKEN(PSI_T_NULL); goto start; }
213 'MIXED' { NEWTOKEN(PSI_T_MIXED); goto start; }
214 'CALLABLE' { NEWTOKEN(PSI_T_CALLABLE); goto start; }
215 'STRING' { NEWTOKEN(PSI_T_STRING); goto start; }
216 'ARRAY' { NEWTOKEN(PSI_T_ARRAY); goto start; }
217 'OBJECT' { NEWTOKEN(PSI_T_OBJECT); goto start; }
218 'CALLBACK' { NEWTOKEN(PSI_T_CALLBACK); goto start; }
219 'STATIC' { NEWTOKEN(PSI_T_STATIC); goto start; }
220 'FUNCTION' { NEWTOKEN(PSI_T_FUNCTION); goto start; }
221 'LIB' { NEWTOKEN(PSI_T_LIB); goto start; }
222 'LET' { NEWTOKEN(PSI_T_LET); goto start; }
223 'SET' { NEWTOKEN(PSI_T_SET); goto start; }
224 'PRE_ASSERT' { NEWTOKEN(PSI_T_PRE_ASSERT); goto start; }
225 'POST_ASSERT' { NEWTOKEN(PSI_T_POST_ASSERT); goto start; }
226 'RETURN' { NEWTOKEN(PSI_T_RETURN); goto start; }
227 'AS' { NEWTOKEN(PSI_T_AS); goto start; }
228 'FREE' { NEWTOKEN(PSI_T_FREE); goto start; }
229 'TEMP' { NEWTOKEN(PSI_T_TEMP); goto start; }
230 'STRLEN' { NEWTOKEN(PSI_T_STRLEN); goto start; }
231 'STRVAL' { NEWTOKEN(PSI_T_STRVAL); goto start; }
232 'PATHVAL' { NEWTOKEN(PSI_T_PATHVAL); goto start; }
233 'INTVAL' { NEWTOKEN(PSI_T_INTVAL); goto start; }
234 'FLOATVAL' { NEWTOKEN(PSI_T_FLOATVAL); goto start; }
235 'BOOLVAL' { NEWTOKEN(PSI_T_BOOLVAL); goto start; }
236 'ARRVAL' { NEWTOKEN(PSI_T_ARRVAL); goto start; }
237 'OBJVAL' { NEWTOKEN(PSI_T_OBJVAL); goto start; }
238 'ZVAL' { NEWTOKEN(PSI_T_ZVAL); goto start; }
239 'COUNT' { NEWTOKEN(PSI_T_COUNT); goto start; }
240 'CALLOC' { NEWTOKEN(PSI_T_CALLOC); goto start; }
241 'TO_OBJECT' { NEWTOKEN(PSI_T_TO_OBJECT); goto start; }
242 'TO_ARRAY' { NEWTOKEN(PSI_T_TO_ARRAY); goto start; }
243 'TO_STRING' { NEWTOKEN(PSI_T_TO_STRING); goto start; }
244 'TO_INT' { NEWTOKEN(PSI_T_TO_INT); goto start; }
245 'TO_FLOAT' { NEWTOKEN(PSI_T_TO_FLOAT); goto start; }
246 'TO_BOOL' { NEWTOKEN(PSI_T_TO_BOOL); goto start; }
247 NAME { NEWTOKEN(PSI_T_NAME); goto start; }
248 NSNAME { NEWTOKEN(PSI_T_NSNAME); goto start; }
249 DOLLAR_NAME { NEWTOKEN(PSI_T_DOLLAR_NAME); goto start; }
250 CPP_HEADER { tok += 1; cur -= 1; NEWTOKEN(PSI_T_CPP_HEADER); cur += 1; goto start; }
251 CPP_ATTRIBUTE { parens = 2; goto cpp_attribute; }
252 EOL { NEWTOKEN(PSI_T_EOL); NEWLINE(); goto start; }
253 SP+ { NEWTOKEN(PSI_T_WHITESPACE); goto start; }
254 [^] { CHECKEOF(); NEWTOKEN(-2); goto error; }
255 * { CHECKEOF(); NEWTOKEN(-1); goto error; }
262 EOL { NEWLINE(); goto character; }
263 "\\" { escaped = !escaped; goto character; }
270 NEWTOKEN(PSI_T_QUOTED_CHAR);
272 token->flags = char_width;
275 * { escaped = false; goto character; }
282 EOL { NEWLINE(); goto string; }
283 "\\" { escaped = !escaped; goto string; }
290 NEWTOKEN(PSI_T_QUOTED_STRING);
292 token->flags = char_width;
295 * { escaped = false; goto string; }
302 EOL { NEWLINE(); goto comment; }
303 "*" "/" { NEWTOKEN(PSI_T_COMMENT); goto start; }
311 EOL { NEWTOKEN(PSI_T_COMMENT); tok = cur - 1; NEWTOKEN(PSI_T_EOL); NEWLINE(); goto start; }
312 * { goto comment_sl; }
320 "(" { ++parens; goto cpp_attribute; }
321 ")" { if (parens == 1) { NEWTOKEN(PSI_T_CPP_ATTRIBUTE); goto start; } else { --parens; goto cpp_attribute; } }
322 EOL { NEWLINE(); goto cpp_attribute; }
323 * { goto cpp_attribute; }
328 P->error(PSI_DATA(P), token, PSI_WARNING, "PSI syntax error: unexpected input (%d) '%.*s' at col %tu",
329 token->type, token->text->len, token->text->val, tok - eol + 1);
330 psi_plist_free(tokens);
335 PSI_DEBUG_PRINT(P, "PSI: EOF cur=%p lim=%p\n", cur, lim);