+++ /dev/null
-/*************************************************
-* PCRE testing program *
-*************************************************/
-
-#include <ctype.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <time.h>
-#include <locale.h>
-
-/* Use the internal info for displaying the results of pcre_study(). */
-
-#include "internal.h"
-
-/* It is possible to compile this test program without including support for
-testing the POSIX interface, though this is not available via the standard
-Makefile. */
-
-#if !defined NOPOSIX
-#include "pcreposix.h"
-#endif
-
-#ifndef CLOCKS_PER_SEC
-#ifdef CLK_TCK
-#define CLOCKS_PER_SEC CLK_TCK
-#else
-#define CLOCKS_PER_SEC 100
-#endif
-#endif
-
-#define LOOPREPEAT 20000
-
-
-static FILE *outfile;
-static int log_store = 0;
-static size_t gotten_store;
-
-
-
-static int utf8_table1[] = {
- 0x0000007f, 0x000007ff, 0x0000ffff, 0x001fffff, 0x03ffffff, 0x7fffffff};
-
-static int utf8_table2[] = {
- 0, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc};
-
-static int utf8_table3[] = {
- 0xff, 0x1f, 0x0f, 0x07, 0x03, 0x01};
-
-
-/*************************************************
-* Convert character value to UTF-8 *
-*************************************************/
-
-/* This function takes an integer value in the range 0 - 0x7fffffff
-and encodes it as a UTF-8 character in 0 to 6 bytes.
-
-Arguments:
- cvalue the character value
- buffer pointer to buffer for result - at least 6 bytes long
-
-Returns: number of characters placed in the buffer
- -1 if input character is negative
- 0 if input character is positive but too big (only when
- int is longer than 32 bits)
-*/
-
-static int
-ord2utf8(int cvalue, unsigned char *buffer)
-{
-register int i, j;
-for (i = 0; i < sizeof(utf8_table1)/sizeof(int); i++)
- if (cvalue <= utf8_table1[i]) break;
-if (i >= sizeof(utf8_table1)/sizeof(int)) return 0;
-if (cvalue < 0) return -1;
-*buffer++ = utf8_table2[i] | (cvalue & utf8_table3[i]);
-cvalue >>= 6 - i;
-for (j = 0; j < i; j++)
- {
- *buffer++ = 0x80 | (cvalue & 0x3f);
- cvalue >>= 6;
- }
-return i + 1;
-}
-
-
-/*************************************************
-* Convert UTF-8 string to value *
-*************************************************/
-
-/* This function takes one or more bytes that represents a UTF-8 character,
-and returns the value of the character.
-
-Argument:
- buffer a pointer to the byte vector
- vptr a pointer to an int to receive the value
-
-Returns: > 0 => the number of bytes consumed
- -6 to 0 => malformed UTF-8 character at offset = (-return)
-*/
-
-int
-utf82ord(unsigned char *buffer, int *vptr)
-{
-int c = *buffer++;
-int d = c;
-int i, j, s;
-
-for (i = -1; i < 6; i++) /* i is number of additional bytes */
- {
- if ((d & 0x80) == 0) break;
- d <<= 1;
- }
-
-if (i == -1) { *vptr = c; return 1; } /* ascii character */
-if (i == 0 || i == 6) return 0; /* invalid UTF-8 */
-
-/* i now has a value in the range 1-5 */
-
-d = c & utf8_table3[i];
-s = 6 - i;
-
-for (j = 0; j < i; j++)
- {
- c = *buffer++;
- if ((c & 0xc0) != 0x80) return -(j+1);
- d |= (c & 0x3f) << s;
- s += 6;
- }
-
-/* Check that encoding was the correct unique one */
-
-for (j = 0; j < sizeof(utf8_table1)/sizeof(int); j++)
- if (d <= utf8_table1[j]) break;
-if (j != i) return -(i+1);
-
-/* Valid value */
-
-*vptr = d;
-return i+1;
-}
-
-
-
-
-
-
-/* Debugging function to print the internal form of the regex. This is the same
-code as contained in pcre.c under the DEBUG macro. */
-
-static const char *OP_names[] = {
- "End", "\\A", "\\B", "\\b", "\\D", "\\d",
- "\\S", "\\s", "\\W", "\\w", "\\Z", "\\z",
- "Opt", "^", "$", "Any", "chars", "not",
- "*", "*?", "+", "+?", "?", "??", "{", "{", "{",
- "*", "*?", "+", "+?", "?", "??", "{", "{", "{",
- "*", "*?", "+", "+?", "?", "??", "{", "{", "{",
- "*", "*?", "+", "+?", "?", "??", "{", "{",
- "class", "Ref", "Recurse",
- "Alt", "Ket", "KetRmax", "KetRmin", "Assert", "Assert not",
- "AssertB", "AssertB not", "Reverse", "Once", "Cond", "Cref",
- "Brazero", "Braminzero", "Bra"
-};
-
-
-static void print_internals(pcre *re)
-{
-unsigned char *code = ((real_pcre *)re)->code;
-
-fprintf(outfile, "------------------------------------------------------------------\n");
-
-for(;;)
- {
- int c;
- int charlength;
-
- fprintf(outfile, "%3d ", (int)(code - ((real_pcre *)re)->code));
-
- if (*code >= OP_BRA)
- {
- fprintf(outfile, "%3d Bra %d", (code[1] << 8) + code[2], *code - OP_BRA);
- code += 2;
- }
-
- else switch(*code)
- {
- case OP_END:
- fprintf(outfile, " %s\n", OP_names[*code]);
- fprintf(outfile, "------------------------------------------------------------------\n");
- return;
-
- case OP_OPT:
- fprintf(outfile, " %.2x %s", code[1], OP_names[*code]);
- code++;
- break;
-
- case OP_COND:
- fprintf(outfile, "%3d Cond", (code[1] << 8) + code[2]);
- code += 2;
- break;
-
- case OP_CREF:
- fprintf(outfile, " %.2d %s", code[1], OP_names[*code]);
- code++;
- break;
-
- case OP_CHARS:
- charlength = *(++code);
- fprintf(outfile, "%3d ", charlength);
- while (charlength-- > 0)
- if (isprint(c = *(++code))) fprintf(outfile, "%c", c);
- else fprintf(outfile, "\\x%02x", c);
- break;
-
- case OP_KETRMAX:
- case OP_KETRMIN:
- case OP_ALT:
- case OP_KET:
- case OP_ASSERT:
- case OP_ASSERT_NOT:
- case OP_ASSERTBACK:
- case OP_ASSERTBACK_NOT:
- case OP_ONCE:
- fprintf(outfile, "%3d %s", (code[1] << 8) + code[2], OP_names[*code]);
- code += 2;
- break;
-
- case OP_REVERSE:
- fprintf(outfile, "%3d %s", (code[1] << 8) + code[2], OP_names[*code]);
- code += 2;
- break;
-
- case OP_STAR:
- case OP_MINSTAR:
- case OP_PLUS:
- case OP_MINPLUS:
- case OP_QUERY:
- case OP_MINQUERY:
- case OP_TYPESTAR:
- case OP_TYPEMINSTAR:
- case OP_TYPEPLUS:
- case OP_TYPEMINPLUS:
- case OP_TYPEQUERY:
- case OP_TYPEMINQUERY:
- if (*code >= OP_TYPESTAR)
- fprintf(outfile, " %s", OP_names[code[1]]);
- else if (isprint(c = code[1])) fprintf(outfile, " %c", c);
- else fprintf(outfile, " \\x%02x", c);
- fprintf(outfile, "%s", OP_names[*code++]);
- break;
-
- case OP_EXACT:
- case OP_UPTO:
- case OP_MINUPTO:
- if (isprint(c = code[3])) fprintf(outfile, " %c{", c);
- else fprintf(outfile, " \\x%02x{", c);
- if (*code != OP_EXACT) fprintf(outfile, ",");
- fprintf(outfile, "%d}", (code[1] << 8) + code[2]);
- if (*code == OP_MINUPTO) fprintf(outfile, "?");
- code += 3;
- break;
-
- case OP_TYPEEXACT:
- case OP_TYPEUPTO:
- case OP_TYPEMINUPTO:
- fprintf(outfile, " %s{", OP_names[code[3]]);
- if (*code != OP_TYPEEXACT) fprintf(outfile, "0,");
- fprintf(outfile, "%d}", (code[1] << 8) + code[2]);
- if (*code == OP_TYPEMINUPTO) fprintf(outfile, "?");
- code += 3;
- break;
-
- case OP_NOT:
- if (isprint(c = *(++code))) fprintf(outfile, " [^%c]", c);
- else fprintf(outfile, " [^\\x%02x]", c);
- break;
-
- case OP_NOTSTAR:
- case OP_NOTMINSTAR:
- case OP_NOTPLUS:
- case OP_NOTMINPLUS:
- case OP_NOTQUERY:
- case OP_NOTMINQUERY:
- if (isprint(c = code[1])) fprintf(outfile, " [^%c]", c);
- else fprintf(outfile, " [^\\x%02x]", c);
- fprintf(outfile, "%s", OP_names[*code++]);
- break;
-
- case OP_NOTEXACT:
- case OP_NOTUPTO:
- case OP_NOTMINUPTO:
- if (isprint(c = code[3])) fprintf(outfile, " [^%c]{", c);
- else fprintf(outfile, " [^\\x%02x]{", c);
- if (*code != OP_NOTEXACT) fprintf(outfile, ",");
- fprintf(outfile, "%d}", (code[1] << 8) + code[2]);
- if (*code == OP_NOTMINUPTO) fprintf(outfile, "?");
- code += 3;
- break;
-
- case OP_REF:
- fprintf(outfile, " \\%d", *(++code));
- code++;
- goto CLASS_REF_REPEAT;
-
- case OP_CLASS:
- {
- int i, min, max;
- code++;
- fprintf(outfile, " [");
-
- for (i = 0; i < 256; i++)
- {
- if ((code[i/8] & (1 << (i&7))) != 0)
- {
- int j;
- for (j = i+1; j < 256; j++)
- if ((code[j/8] & (1 << (j&7))) == 0) break;
- if (i == '-' || i == ']') fprintf(outfile, "\\");
- if (isprint(i)) fprintf(outfile, "%c", i); else fprintf(outfile, "\\x%02x", i);
- if (--j > i)
- {
- fprintf(outfile, "-");
- if (j == '-' || j == ']') fprintf(outfile, "\\");
- if (isprint(j)) fprintf(outfile, "%c", j); else fprintf(outfile, "\\x%02x", j);
- }
- i = j;
- }
- }
- fprintf(outfile, "]");
- code += 32;
-
- CLASS_REF_REPEAT:
-
- switch(*code)
- {
- case OP_CRSTAR:
- case OP_CRMINSTAR:
- case OP_CRPLUS:
- case OP_CRMINPLUS:
- case OP_CRQUERY:
- case OP_CRMINQUERY:
- fprintf(outfile, "%s", OP_names[*code]);
- break;
-
- case OP_CRRANGE:
- case OP_CRMINRANGE:
- min = (code[1] << 8) + code[2];
- max = (code[3] << 8) + code[4];
- if (max == 0) fprintf(outfile, "{%d,}", min);
- else fprintf(outfile, "{%d,%d}", min, max);
- if (*code == OP_CRMINRANGE) fprintf(outfile, "?");
- code += 4;
- break;
-
- default:
- code--;
- }
- }
- break;
-
- /* Anything else is just a one-node item */
-
- default:
- fprintf(outfile, " %s", OP_names[*code]);
- break;
- }
-
- code++;
- fprintf(outfile, "\n");
- }
-}
-
-
-
-/* Character string printing function. A "normal" and a UTF-8 version. */
-
-static void pchars(unsigned char *p, int length, int utf8)
-{
-int c;
-while (length-- > 0)
- {
- if (utf8)
- {
- int rc = utf82ord(p, &c);
- if (rc > 0)
- {
- length -= rc - 1;
- p += rc;
- if (c < 256 && isprint(c)) fprintf(outfile, "%c", c);
- else fprintf(outfile, "\\x{%02x}", c);
- continue;
- }
- }
-
- /* Not UTF-8, or malformed UTF-8 */
-
- if (isprint(c = *(p++))) fprintf(outfile, "%c", c);
- else fprintf(outfile, "\\x%02x", c);
- }
-}
-
-
-
-/* Alternative malloc function, to test functionality and show the size of the
-compiled re. */
-
-static void *new_malloc(size_t size)
-{
-gotten_store = size;
-if (log_store)
- fprintf(outfile, "Memory allocation (code space): %d\n",
- (int)((int)size - offsetof(real_pcre, code[0])));
-return malloc(size);
-}
-
-
-
-
-/* Get one piece of information from the pcre_fullinfo() function */
-
-static void new_info(pcre *re, pcre_extra *study, int option, void *ptr)
-{
-int rc;
-if ((rc = pcre_fullinfo(re, study, option, ptr)) < 0)
- fprintf(outfile, "Error %d from pcre_fullinfo(%d)\n", rc, option);
-}
-
-
-
-
-/* Read lines from named file or stdin and write to named file or stdout; lines
-consist of a regular expression, in delimiters and optionally followed by
-options, followed by a set of test data, terminated by an empty line. */
-
-int main(int argc, char **argv)
-{
-FILE *infile = stdin;
-int options = 0;
-int study_options = 0;
-int op = 1;
-int timeit = 0;
-int showinfo = 0;
-int showstore = 0;
-int posix = 0;
-int debug = 0;
-int done = 0;
-unsigned char buffer[30000];
-unsigned char dbuffer[1024];
-
-/* Static so that new_malloc can use it. */
-
-outfile = stdout;
-
-/* Scan options */
-
-while (argc > 1 && argv[op][0] == '-')
- {
- if (strcmp(argv[op], "-s") == 0 || strcmp(argv[op], "-m") == 0)
- showstore = 1;
- else if (strcmp(argv[op], "-t") == 0) timeit = 1;
- else if (strcmp(argv[op], "-i") == 0) showinfo = 1;
- else if (strcmp(argv[op], "-d") == 0) showinfo = debug = 1;
- else if (strcmp(argv[op], "-p") == 0) posix = 1;
- else
- {
- printf("*** Unknown option %s\n", argv[op]);
- printf("Usage: pcretest [-d] [-i] [-p] [-s] [-t] [<input> [<output>]]\n");
- printf(" -d debug: show compiled code; implies -i\n"
- " -i show information about compiled pattern\n"
- " -p use POSIX interface\n"
- " -s output store information\n"
- " -t time compilation and execution\n");
- return 1;
- }
- op++;
- argc--;
- }
-
-/* Sort out the input and output files */
-
-if (argc > 1)
- {
- infile = fopen(argv[op], "r");
- if (infile == NULL)
- {
- printf("** Failed to open %s\n", argv[op]);
- return 1;
- }
- }
-
-if (argc > 2)
- {
- outfile = fopen(argv[op+1], "w");
- if (outfile == NULL)
- {
- printf("** Failed to open %s\n", argv[op+1]);
- return 1;
- }
- }
-
-/* Set alternative malloc function */
-
-pcre_malloc = new_malloc;
-
-/* Heading line, then prompt for first regex if stdin */
-
-fprintf(outfile, "PCRE version %s\n\n", pcre_version());
-
-/* Main loop */
-
-while (!done)
- {
- pcre *re = NULL;
- pcre_extra *extra = NULL;
-
-#if !defined NOPOSIX /* There are still compilers that require no indent */
- regex_t preg;
- int do_posix = 0;
-#endif
-
- const char *error;
- unsigned char *p, *pp, *ppp;
- unsigned const char *tables = NULL;
- int do_study = 0;
- int do_debug = debug;
- int do_G = 0;
- int do_g = 0;
- int do_showinfo = showinfo;
- int do_showrest = 0;
- int utf8 = 0;
- int erroroffset, len, delimiter;
-
- if (infile == stdin) printf(" re> ");
- if (fgets((char *)buffer, sizeof(buffer), infile) == NULL) break;
- if (infile != stdin) fprintf(outfile, "%s", (char *)buffer);
-
- p = buffer;
- while (isspace(*p)) p++;
- if (*p == 0) continue;
-
- /* Get the delimiter and seek the end of the pattern; if is isn't
- complete, read more. */
-
- delimiter = *p++;
-
- if (isalnum(delimiter) || delimiter == '\\')
- {
- fprintf(outfile, "** Delimiter must not be alphameric or \\\n");
- goto SKIP_DATA;
- }
-
- pp = p;
-
- for(;;)
- {
- while (*pp != 0)
- {
- if (*pp == '\\' && pp[1] != 0) pp++;
- else if (*pp == delimiter) break;
- pp++;
- }
- if (*pp != 0) break;
-
- len = sizeof(buffer) - (pp - buffer);
- if (len < 256)
- {
- fprintf(outfile, "** Expression too long - missing delimiter?\n");
- goto SKIP_DATA;
- }
-
- if (infile == stdin) printf(" > ");
- if (fgets((char *)pp, len, infile) == NULL)
- {
- fprintf(outfile, "** Unexpected EOF\n");
- done = 1;
- goto CONTINUE;
- }
- if (infile != stdin) fprintf(outfile, "%s", (char *)pp);
- }
-
- /* If the first character after the delimiter is backslash, make
- the pattern end with backslash. This is purely to provide a way
- of testing for the error message when a pattern ends with backslash. */
-
- if (pp[1] == '\\') *pp++ = '\\';
-
- /* Terminate the pattern at the delimiter */
-
- *pp++ = 0;
-
- /* Look for options after final delimiter */
-
- options = 0;
- study_options = 0;
- log_store = showstore; /* default from command line */
-
- while (*pp != 0)
- {
- switch (*pp++)
- {
- case 'g': do_g = 1; break;
- case 'i': options |= PCRE_CASELESS; break;
- case 'm': options |= PCRE_MULTILINE; break;
- case 's': options |= PCRE_DOTALL; break;
- case 'x': options |= PCRE_EXTENDED; break;
-
- case '+': do_showrest = 1; break;
- case 'A': options |= PCRE_ANCHORED; break;
- case 'D': do_debug = do_showinfo = 1; break;
- case 'E': options |= PCRE_DOLLAR_ENDONLY; break;
- case 'G': do_G = 1; break;
- case 'I': do_showinfo = 1; break;
- case 'M': log_store = 1; break;
-
-#if !defined NOPOSIX
- case 'P': do_posix = 1; break;
-#endif
-
- case 'S': do_study = 1; break;
- case 'U': options |= PCRE_UNGREEDY; break;
- case 'X': options |= PCRE_EXTRA; break;
- case '8': options |= PCRE_UTF8; utf8 = 1; break;
-
- case 'L':
- ppp = pp;
- while (*ppp != '\n' && *ppp != ' ') ppp++;
- *ppp = 0;
- if (setlocale(LC_CTYPE, (const char *)pp) == NULL)
- {
- fprintf(outfile, "** Failed to set locale \"%s\"\n", pp);
- goto SKIP_DATA;
- }
- tables = pcre_maketables();
- pp = ppp;
- break;
-
- case '\n': case ' ': break;
- default:
- fprintf(outfile, "** Unknown option '%c'\n", pp[-1]);
- goto SKIP_DATA;
- }
- }
-
- /* Handle compiling via the POSIX interface, which doesn't support the
- timing, showing, or debugging options, nor the ability to pass over
- local character tables. */
-
-#if !defined NOPOSIX
- if (posix || do_posix)
- {
- int rc;
- int cflags = 0;
- if ((options & PCRE_CASELESS) != 0) cflags |= REG_ICASE;
- if ((options & PCRE_MULTILINE) != 0) cflags |= REG_NEWLINE;
- rc = regcomp(&preg, (char *)p, cflags);
-
- /* Compilation failed; go back for another re, skipping to blank line
- if non-interactive. */
-
- if (rc != 0)
- {
- (void)regerror(rc, &preg, (char *)buffer, sizeof(buffer));
- fprintf(outfile, "Failed: POSIX code %d: %s\n", rc, buffer);
- goto SKIP_DATA;
- }
- }
-
- /* Handle compiling via the native interface */
-
- else
-#endif /* !defined NOPOSIX */
-
- {
- if (timeit)
- {
- register int i;
- clock_t time_taken;
- clock_t start_time = clock();
- for (i = 0; i < LOOPREPEAT; i++)
- {
- re = pcre_compile((char *)p, options, &error, &erroroffset, tables);
- if (re != NULL) free(re);
- }
- time_taken = clock() - start_time;
- fprintf(outfile, "Compile time %.3f milliseconds\n",
- ((double)time_taken * 1000.0) /
- ((double)LOOPREPEAT * (double)CLOCKS_PER_SEC));
- }
-
- re = pcre_compile((char *)p, options, &error, &erroroffset, tables);
-
- /* Compilation failed; go back for another re, skipping to blank line
- if non-interactive. */
-
- if (re == NULL)
- {
- fprintf(outfile, "Failed: %s at offset %d\n", error, erroroffset);
- SKIP_DATA:
- if (infile != stdin)
- {
- for (;;)
- {
- if (fgets((char *)buffer, sizeof(buffer), infile) == NULL)
- {
- done = 1;
- goto CONTINUE;
- }
- len = (int)strlen((char *)buffer);
- while (len > 0 && isspace(buffer[len-1])) len--;
- if (len == 0) break;
- }
- fprintf(outfile, "\n");
- }
- goto CONTINUE;
- }
-
- /* Compilation succeeded; print data if required. There are now two
- info-returning functions. The old one has a limited interface and
- returns only limited data. Check that it agrees with the newer one. */
-
- if (do_showinfo)
- {
- int old_first_char, old_options, old_count;
- int count, backrefmax, first_char, need_char;
- size_t size;
-
- if (do_debug) print_internals(re);
-
- new_info(re, NULL, PCRE_INFO_OPTIONS, &options);
- new_info(re, NULL, PCRE_INFO_SIZE, &size);
- new_info(re, NULL, PCRE_INFO_CAPTURECOUNT, &count);
- new_info(re, NULL, PCRE_INFO_BACKREFMAX, &backrefmax);
- new_info(re, NULL, PCRE_INFO_FIRSTCHAR, &first_char);
- new_info(re, NULL, PCRE_INFO_LASTLITERAL, &need_char);
-
- old_count = pcre_info(re, &old_options, &old_first_char);
- if (count < 0) fprintf(outfile,
- "Error %d from pcre_info()\n", count);
- else
- {
- if (old_count != count) fprintf(outfile,
- "Count disagreement: pcre_fullinfo=%d pcre_info=%d\n", count,
- old_count);
-
- if (old_first_char != first_char) fprintf(outfile,
- "First char disagreement: pcre_fullinfo=%d pcre_info=%d\n",
- first_char, old_first_char);
-
- if (old_options != options) fprintf(outfile,
- "Options disagreement: pcre_fullinfo=%d pcre_info=%d\n", options,
- old_options);
- }
-
- if (size != gotten_store) fprintf(outfile,
- "Size disagreement: pcre_fullinfo=%d call to malloc for %d\n",
- size, gotten_store);
-
- fprintf(outfile, "Capturing subpattern count = %d\n", count);
- if (backrefmax > 0)
- fprintf(outfile, "Max back reference = %d\n", backrefmax);
- if (options == 0) fprintf(outfile, "No options\n");
- else fprintf(outfile, "Options:%s%s%s%s%s%s%s%s%s\n",
- ((options & PCRE_ANCHORED) != 0)? " anchored" : "",
- ((options & PCRE_CASELESS) != 0)? " caseless" : "",
- ((options & PCRE_EXTENDED) != 0)? " extended" : "",
- ((options & PCRE_MULTILINE) != 0)? " multiline" : "",
- ((options & PCRE_DOTALL) != 0)? " dotall" : "",
- ((options & PCRE_DOLLAR_ENDONLY) != 0)? " dollar_endonly" : "",
- ((options & PCRE_EXTRA) != 0)? " extra" : "",
- ((options & PCRE_UNGREEDY) != 0)? " ungreedy" : "",
- ((options & PCRE_UTF8) != 0)? " utf8" : "");
-
- if (((((real_pcre *)re)->options) & PCRE_ICHANGED) != 0)
- fprintf(outfile, "Case state changes\n");
-
- if (first_char == -1)
- {
- fprintf(outfile, "First char at start or follows \\n\n");
- }
- else if (first_char < 0)
- {
- fprintf(outfile, "No first char\n");
- }
- else
- {
- if (isprint(first_char))
- fprintf(outfile, "First char = \'%c\'\n", first_char);
- else
- fprintf(outfile, "First char = %d\n", first_char);
- }
-
- if (need_char < 0)
- {
- fprintf(outfile, "No need char\n");
- }
- else
- {
- if (isprint(need_char))
- fprintf(outfile, "Need char = \'%c\'\n", need_char);
- else
- fprintf(outfile, "Need char = %d\n", need_char);
- }
- }
-
- /* If /S was present, study the regexp to generate additional info to
- help with the matching. */
-
- if (do_study)
- {
- if (timeit)
- {
- register int i;
- clock_t time_taken;
- clock_t start_time = clock();
- for (i = 0; i < LOOPREPEAT; i++)
- extra = pcre_study(re, study_options, &error);
- time_taken = clock() - start_time;
- if (extra != NULL) free(extra);
- fprintf(outfile, " Study time %.3f milliseconds\n",
- ((double)time_taken * 1000.0)/
- ((double)LOOPREPEAT * (double)CLOCKS_PER_SEC));
- }
-
- extra = pcre_study(re, study_options, &error);
- if (error != NULL)
- fprintf(outfile, "Failed to study: %s\n", error);
- else if (extra == NULL)
- fprintf(outfile, "Study returned NULL\n");
-
- else if (do_showinfo)
- {
- uschar *start_bits = NULL;
- new_info(re, extra, PCRE_INFO_FIRSTTABLE, &start_bits);
- if (start_bits == NULL)
- fprintf(outfile, "No starting character set\n");
- else
- {
- int i;
- int c = 24;
- fprintf(outfile, "Starting character set: ");
- for (i = 0; i < 256; i++)
- {
- if ((start_bits[i/8] & (1<<(i%8))) != 0)
- {
- if (c > 75)
- {
- fprintf(outfile, "\n ");
- c = 2;
- }
- if (isprint(i) && i != ' ')
- {
- fprintf(outfile, "%c ", i);
- c += 2;
- }
- else
- {
- fprintf(outfile, "\\x%02x ", i);
- c += 5;
- }
- }
- }
- fprintf(outfile, "\n");
- }
- }
- }
- }
-
- /* Read data lines and test them */
-
- for (;;)
- {
- unsigned char *q;
- unsigned char *bptr = dbuffer;
- int count, c;
- int copystrings = 0;
- int getstrings = 0;
- int getlist = 0;
- int gmatched = 0;
- int start_offset = 0;
- int g_notempty = 0;
- int offsets[45];
- int size_offsets = sizeof(offsets)/sizeof(int);
-
- options = 0;
-
- if (infile == stdin) printf("data> ");
- if (fgets((char *)buffer, sizeof(buffer), infile) == NULL)
- {
- done = 1;
- goto CONTINUE;
- }
- if (infile != stdin) fprintf(outfile, "%s", (char *)buffer);
-
- len = (int)strlen((char *)buffer);
- while (len > 0 && isspace(buffer[len-1])) len--;
- buffer[len] = 0;
- if (len == 0) break;
-
- p = buffer;
- while (isspace(*p)) p++;
-
- q = dbuffer;
- while ((c = *p++) != 0)
- {
- int i = 0;
- int n = 0;
- if (c == '\\') switch ((c = *p++))
- {
- case 'a': c = 7; break;
- case 'b': c = '\b'; break;
- case 'e': c = 27; break;
- case 'f': c = '\f'; break;
- case 'n': c = '\n'; break;
- case 'r': c = '\r'; break;
- case 't': c = '\t'; break;
- case 'v': c = '\v'; break;
-
- case '0': case '1': case '2': case '3':
- case '4': case '5': case '6': case '7':
- c -= '0';
- while (i++ < 2 && isdigit(*p) && *p != '8' && *p != '9')
- c = c * 8 + *p++ - '0';
- break;
-
- case 'x':
-
- /* Handle \x{..} specially - new Perl thing for utf8 */
-
- if (*p == '{')
- {
- unsigned char *pt = p;
- c = 0;
- while (isxdigit(*(++pt)))
- c = c * 16 + tolower(*pt) - ((isdigit(*pt))? '0' : 'W');
- if (*pt == '}')
- {
- unsigned char buffer[8];
- int ii, utn;
- utn = ord2utf8(c, buffer);
- for (ii = 0; ii < utn - 1; ii++) *q++ = buffer[ii];
- c = buffer[ii]; /* Last byte */
- p = pt + 1;
- break;
- }
- /* Not correct form; fall through */
- }
-
- /* Ordinary \x */
-
- c = 0;
- while (i++ < 2 && isxdigit(*p))
- {
- c = c * 16 + tolower(*p) - ((isdigit(*p))? '0' : 'W');
- p++;
- }
- break;
-
- case 0: /* Allows for an empty line */
- p--;
- continue;
-
- case 'A': /* Option setting */
- options |= PCRE_ANCHORED;
- continue;
-
- case 'B':
- options |= PCRE_NOTBOL;
- continue;
-
- case 'C':
- while(isdigit(*p)) n = n * 10 + *p++ - '0';
- copystrings |= 1 << n;
- continue;
-
- case 'G':
- while(isdigit(*p)) n = n * 10 + *p++ - '0';
- getstrings |= 1 << n;
- continue;
-
- case 'L':
- getlist = 1;
- continue;
-
- case 'N':
- options |= PCRE_NOTEMPTY;
- continue;
-
- case 'O':
- while(isdigit(*p)) n = n * 10 + *p++ - '0';
- if (n <= (int)(sizeof(offsets)/sizeof(int))) size_offsets = n;
- continue;
-
- case 'Z':
- options |= PCRE_NOTEOL;
- continue;
- }
- *q++ = c;
- }
- *q = 0;
- len = q - dbuffer;
-
- /* Handle matching via the POSIX interface, which does not
- support timing. */
-
-#if !defined NOPOSIX
- if (posix || do_posix)
- {
- int rc;
- int eflags = 0;
- regmatch_t pmatch[sizeof(offsets)/sizeof(int)];
- if ((options & PCRE_NOTBOL) != 0) eflags |= REG_NOTBOL;
- if ((options & PCRE_NOTEOL) != 0) eflags |= REG_NOTEOL;
-
- rc = regexec(&preg, (const char *)bptr, size_offsets, pmatch, eflags);
-
- if (rc != 0)
- {
- (void)regerror(rc, &preg, (char *)buffer, sizeof(buffer));
- fprintf(outfile, "No match: POSIX code %d: %s\n", rc, buffer);
- }
- else
- {
- size_t i;
- for (i = 0; i < size_offsets; i++)
- {
- if (pmatch[i].rm_so >= 0)
- {
- fprintf(outfile, "%2d: ", (int)i);
- pchars(dbuffer + pmatch[i].rm_so,
- pmatch[i].rm_eo - pmatch[i].rm_so, utf8);
- fprintf(outfile, "\n");
- if (i == 0 && do_showrest)
- {
- fprintf(outfile, " 0+ ");
- pchars(dbuffer + pmatch[i].rm_eo, len - pmatch[i].rm_eo, utf8);
- fprintf(outfile, "\n");
- }
- }
- }
- }
- }
-
- /* Handle matching via the native interface - repeats for /g and /G */
-
- else
-#endif /* !defined NOPOSIX */
-
- for (;; gmatched++) /* Loop for /g or /G */
- {
- if (timeit)
- {
- register int i;
- clock_t time_taken;
- clock_t start_time = clock();
- for (i = 0; i < LOOPREPEAT; i++)
- count = pcre_exec(re, extra, (char *)bptr, len,
- start_offset, options | g_notempty, offsets, size_offsets);
- time_taken = clock() - start_time;
- fprintf(outfile, "Execute time %.3f milliseconds\n",
- ((double)time_taken * 1000.0)/
- ((double)LOOPREPEAT * (double)CLOCKS_PER_SEC));
- }
-
- count = pcre_exec(re, extra, (char *)bptr, len,
- start_offset, options | g_notempty, offsets, size_offsets);
-
- if (count == 0)
- {
- fprintf(outfile, "Matched, but too many substrings\n");
- count = size_offsets/3;
- }
-
- /* Matched */
-
- if (count >= 0)
- {
- int i;
- for (i = 0; i < count * 2; i += 2)
- {
- if (offsets[i] < 0)
- fprintf(outfile, "%2d: <unset>\n", i/2);
- else
- {
- fprintf(outfile, "%2d: ", i/2);
- pchars(bptr + offsets[i], offsets[i+1] - offsets[i], utf8);
- fprintf(outfile, "\n");
- if (i == 0)
- {
- if (do_showrest)
- {
- fprintf(outfile, " 0+ ");
- pchars(bptr + offsets[i+1], len - offsets[i+1], utf8);
- fprintf(outfile, "\n");
- }
- }
- }
- }
-
- for (i = 0; i < 32; i++)
- {
- if ((copystrings & (1 << i)) != 0)
- {
- char copybuffer[16];
- int rc = pcre_copy_substring((char *)bptr, offsets, count,
- i, copybuffer, sizeof(copybuffer));
- if (rc < 0)
- fprintf(outfile, "copy substring %d failed %d\n", i, rc);
- else
- fprintf(outfile, "%2dC %s (%d)\n", i, copybuffer, rc);
- }
- }
-
- for (i = 0; i < 32; i++)
- {
- if ((getstrings & (1 << i)) != 0)
- {
- const char *substring;
- int rc = pcre_get_substring((char *)bptr, offsets, count,
- i, &substring);
- if (rc < 0)
- fprintf(outfile, "get substring %d failed %d\n", i, rc);
- else
- {
- fprintf(outfile, "%2dG %s (%d)\n", i, substring, rc);
- /* free((void *)substring); */
- pcre_free_substring(substring);
- }
- }
- }
-
- if (getlist)
- {
- const char **stringlist;
- int rc = pcre_get_substring_list((char *)bptr, offsets, count,
- &stringlist);
- if (rc < 0)
- fprintf(outfile, "get substring list failed %d\n", rc);
- else
- {
- for (i = 0; i < count; i++)
- fprintf(outfile, "%2dL %s\n", i, stringlist[i]);
- if (stringlist[i] != NULL)
- fprintf(outfile, "string list not terminated by NULL\n");
- /* free((void *)stringlist); */
- pcre_free_substring_list(stringlist);
- }
- }
- }
-
- /* Failed to match. If this is a /g or /G loop and we previously set
- g_notempty after a null match, this is not necessarily the end.
- We want to advance the start offset, and continue. Fudge the offset
- values to achieve this. We won't be at the end of the string - that
- was checked before setting g_notempty. */
-
- else
- {
- if (g_notempty != 0)
- {
- offsets[0] = start_offset;
- offsets[1] = start_offset + 1;
- }
- else
- {
- if (gmatched == 0) /* Error if no previous matches */
- {
- if (count == -1) fprintf(outfile, "No match\n");
- else fprintf(outfile, "Error %d\n", count);
- }
- break; /* Out of the /g loop */
- }
- }
-
- /* If not /g or /G we are done */
-
- if (!do_g && !do_G) break;
-
- /* If we have matched an empty string, first check to see if we are at
- the end of the subject. If so, the /g loop is over. Otherwise, mimic
- what Perl's /g options does. This turns out to be rather cunning. First
- we set PCRE_NOTEMPTY and PCRE_ANCHORED and try the match again at the
- same point. If this fails (picked up above) we advance to the next
- character. */
-
- g_notempty = 0;
- if (offsets[0] == offsets[1])
- {
- if (offsets[0] == len) break;
- g_notempty = PCRE_NOTEMPTY | PCRE_ANCHORED;
- }
-
- /* For /g, update the start offset, leaving the rest alone */
-
- if (do_g) start_offset = offsets[1];
-
- /* For /G, update the pointer and length */
-
- else
- {
- bptr += offsets[1];
- len -= offsets[1];
- }
- } /* End of loop for /g and /G */
- } /* End of loop for data lines */
-
- CONTINUE:
-
-#if !defined NOPOSIX
- if (posix || do_posix) regfree(&preg);
-#endif
-
- if (re != NULL) free(re);
- if (extra != NULL) free(extra);
- if (tables != NULL)
- {
- free((void *)tables);
- setlocale(LC_CTYPE, "C");
- }
- }
-
-fprintf(outfile, "\n");
-return 0;
-}
-
-/* End */
projects / privoxy.git / blobdiff