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* (try_help, check_stdout): New functions.Paul Eggert1994-09-081-26/+40
| | | | (usage): Just print usage; let caller worry about exiting.
* (main): Call initialize_main first.Paul Eggert1994-09-021-15/+80
| | | | | | | If we'll have children, make sure SIGCHLD isn't ignored. (read_diff): Use popen+pclose if !HAVE_FORK. (DIFF_CHUNK_SIZE): Removed. We now get initial chunk size from STAT_BLOCKSIZE. (INT_STRLEN_BOUND): New macro.
* (ck_fdopen): Function removed.Paul Eggert1994-09-021-62/+119
| | | | | | | | | | | (cleanup, main, waitpid): Use popen+pclose if !HAVE_FORK. (edit): Use system if !HAVE_FORK. (main): Call initialize_main first. (execdiff): Now assumes caller has pushed all args, plus trailing 0. All callers changed. (trapsigs): If we'll have children, make sure SIGCHLD isn't ignored. (private_tempnam): Try TMP if TMPDIR isn't defined. Fit temporary filenames into 8.3 limit.
* Include <sys/file.h> only if HAVE_SYS_FILE_H.Paul Eggert1994-09-021-11/+43
| | | | | | | | (S_IXGRP, S_IXOTH, S_IXUSR): Remove unused macros. (STAT_BLOCKSIZE): Don't define if already defined. (min, max): Undef if already defined. (filename_cmp, filename_lastdirchar, HAVE_FORK, HAVE_SETMODE, initialize_main O_BINARY, same_file): New macros, for porting to non-Posix systems like DOS.
* (binary_I_O): New variable for --binary option.Paul Eggert1994-09-021-11/+40
| | | | | | | | | (main, usage, compare_files): Support --binary option. (main): Call initialize_main first. If we'll have children, make sure SIGCHLD isn't ignored. (compare_files): Use filename_cmp to compare file names. Use filename_lastdirchar to find last directory char in a file name. Use same_file to determine whether two files are the same.
* (begin_output): Use popen+pclose if !HAVE_FORK. Check fdopen status.Paul Eggert1994-09-021-4/+33
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* (sip): If HAVE_SETMODE, always test for binary files using binary mode.Paul Eggert1994-09-021-6/+17
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* (print_context_label): Check whether (broken) ctime yields 0.Paul Eggert1994-09-021-4/+8
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* (main): Call initialize_main first.Paul Eggert1994-09-011-7/+6
| | | | | Use filename_cmp to compare file names. Use same_file to determine whether two files are the same.
* (compare_names, diff_dirs): Use filename_cmp to compare file names.Paul Eggert1994-09-011-5/+6
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* (format_group, groups_letter_value): Use * instead of [] in prototypes.Paul Eggert1994-09-011-5/+5
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* (word): Change from typedef to #define, to avoid collision withPaul Eggert1994-06-172-2/+2
| | | | Unicos 8.0 <sys/types.h>, which also typedefs `word'.
* (print_number_range): Don't rely on promotion to make the old-style parameterPaul Eggert1994-04-151-1/+1
| | | | | type agree with the prototype parameter type; this doesn't work on Apollos running bsd4.3.
* (scan_diff_line): Don't rely on promotion to make the old-style parameterPaul Eggert1994-04-151-2/+2
| | | | | type agree with the prototype parameter type; this doesn't work on Apollos running bsd4.3.
* diffutils 2.6Paul Eggert1993-12-131-3/+3
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* (main): allow -p -u.Paul Eggert1993-12-031-1/+5
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* (xmalloc, xrealloc): "virtual memory" -> "memory"Paul Eggert1993-11-101-2/+2
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* (usage): Send usage to stdout, not stderr.Paul Eggert1993-11-101-23/+21
| | | | | (long_options, main, usage): Add `--help'. (main): Send version number to stdout, not stderr. Exit afterwards.
* (word): Change to `int'; it makes a big difference on x86.Paul Eggert1993-11-101-22/+22
| | | | | | | (sip, slurp): Put off allocating room to hold the whole file until we have to read the whole file. This wins if the file turns out to be binary. (primes): Omit large primes if INT_MAX is small.
* (usage): Send usage to stdout, not stderr.Paul Eggert1993-11-101-15/+27
| | | | | (long_options, main, usage): Add `--help'. (read_diff): Detect integer overflow in buffer size calculations.
* (long_options, main, usage): Add `--help'.Paul Eggert1993-11-101-17/+24
| | | | | | (main): Send version number to stdout, not stderr. (usage): Send usage to stdout, not stderr. (compare_files): Initialize `inf' properly.
* (word): New type. All uses of `long' for word-at-a-time comparisonsPaul Eggert1993-11-101-43/+47
| | | | | | | changed to `word'. (long_options, main, usage): Add `--help'. (usage): Send usage to stdout, not stderr. (main): Add `-v'. Send version number to stdout, not stderr.
* (too_expensive): New variable, for heuristic to limit the worst-casePaul Eggert1993-11-101-121/+245
| | | | | | | | | | | | | cost to O(N**1.5 log N) at the price of producing suboptimal output for large inputs with many differences. (diff_2_files): Initialize it. (struct partition): New type. (SNAKE_LIMIT): New macro; merely documents already-used number 20. (diag): New `minimal' arg; all callers changed. Put results into struct partition. Apply `too_expensive' heuristic. Tune. (compareseq): New `minimal' arg; all callers changed. Tune. (shift_boundaries): Improve heuristic to also coalesce adjacent runs of changes more often.
* (memchr): Make first arg char const *Paul Eggert1993-09-271-4/+4
| | | | | | to match standard. (xmalloc, xrealloc): Cast malloc, realloc to (VOID *) to suppress bogus warnings on some nonstandard hosts.
* (malloc, realloc): Declare only if !HAVE_STDLIB_H.Paul Eggert1993-09-271-8/+4
| | | | | (memchr): Declare only if !HAVE_MEMCHR. These changes are needed to keep some nonstandard hosts happy.
* (xmalloc, xrealloc): Cast malloc, reallocPaul Eggert1993-09-271-6/+6
| | | | | | | | to (VOID *) to suppress bogus warnings on some nonstandard hosts. (lf_copy, lf_skip, lf_snarf): Cast memchr to (char *) to suppress bogus warnings on some nonstandard hosts. (memchr): Make first arg char const * to match standard.
* (xmalloc, xrealloc): Cast malloc, reallocPaul Eggert1993-09-271-2/+2
| | | | to (VOID *) to suppress bogus warnings on some nonstandard hosts.
* (add_exclude_file): Cast memchr to (char *)Paul Eggert1993-09-271-1/+1
| | | | to suppress bogus warnings on some nonstandard hosts.
* (main, usage, version_string): Add --version option.Paul Eggert1993-09-271-2/+9
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* (diff_2_files): Work around memcmp bug with size=0.Paul Eggert1993-09-271-3/+4
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* (output_1_line): Use isprint, since some hosts lack isgraph.Paul Eggert1993-09-181-4/+4
| | | | | Ensure that its argument isn't negative. (xmalloc, xrealloc): Remove needless casts.
* (volatile, const): Define these before including any system headers,Paul Eggert1993-09-181-9/+36
| | | | | | | | so that they're used consistently in all system includes. (S_IS{BLK,CHR,DIR,FIFO,REG,SOCK}): Fix defns if STAT_MACROS_BROKEN. (getenv, malloc, realloc): Declare even if HAVE_STDLIB_H, since some <stdlib.h>s don't declare them. (memchr): Likewise for <string.h>.
* Include "system.h" first.Paul Eggert1993-09-181-2/+2
| | | | (xmalloc): Make defn static, like declaration.
* Include "system.h" first.Paul Eggert1993-09-181-8/+8
| | | | | | (xmalloc): Now static. (xmalloc, realloc): Remove needless casts. (READNUM): Ensure isdigit argument isn't negative.
* Remove redundant "system.h" inclusion.Paul Eggert1993-09-181-1/+0
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* Include "system.h" first.Paul Eggert1993-09-181-1/+1
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* (discard_confusing_lines): Make defn static, like declaration.Paul Eggert1993-09-181-1/+1
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* GNU diffutils 2.6Paul Eggert1993-09-171-3/+5
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* GNU diffutils 2.6Paul Eggert1993-09-171-1/+1
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* GNU diffutils 2.6Paul Eggert1993-09-171-1/+1
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* #include <config.h>, not "config.h", to allowPaul Eggert1993-09-151-1/+1
| | | | | configuring in a separate directory when the source directory has already been configured.
* (scan_char_literal): New function, for new %c'x' andPaul Eggert1993-09-151-49/+102
| | | | | %c'\ooo' format specs. (format_group, print_ifdef_lines): Use it. Remove %0 format spec.
* (cmp): Don't try to read past end of file; this doesn'tPaul Eggert1993-09-151-2/+3
| | | | work on ttys.
* (line_cmp): bcmp -> memcmpPaul Eggert1993-09-131-4/+4
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* (PARAMS, VOID): Define earlier so that malloc decl can use VOID.Paul Eggert1993-09-131-49/+44
| | | | | | | | (STAT_BLOCKSIZE): Simplify ersatz defn; just use 8K. (dirent): Renamed from direct; dirent makes the code more standard. <limits.h>, <stdlib.h>, <string.h>: Include only if corresponding HAVE_*_H. (memcmp, memcpy, strchr, strrchr): Prefer these standard names to traditional names.
* (expand_name): rindex -> strrchrPaul Eggert1993-09-131-6/+6
| | | | | (expand_name, lf_snarf): bcopy -> memcpy (interact): index -> strchr
* (struct group): New struct.Paul Eggert1993-09-131-76/+267
| | | | | | | | | | | | (print_ifdef_lines): Use it to simplify argument passing. Remove the convention that last arg -1 signifies that the lines from file 2 are the same as the lines from file 1; this convention no longer works, now that line numbers might be printed out, since the line's numbers may differ. Add first FILE * argument to output to. All callers changed. Use a faster test for the single-fwrite optimization. Add support for %?c, %(A=B?T:E), PRINTF_SPECn formats. (format_group, scan_printf_spec, groups_letter_value): New functions. (format_ifdef): 1st arg is no longer const pointer.
* (copy_stringlist, compare_line_list): bcmp -> memcmpPaul Eggert1993-09-131-5/+5
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* (group_format, line_format): No longer const pointers.Paul Eggert1993-09-131-4/+4
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* (main, longopts): Add --line-format=FORMAT option.Paul Eggert1993-09-131-29/+33
| | | | | (specify_format): Args no longer const pointers. All callers changed. (compare_files): rindex -> strrchr.
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