diff options
Diffstat (limited to 'usr.bin/unifdef/unifdef.c')
| -rw-r--r-- | usr.bin/unifdef/unifdef.c | 83 |
1 files changed, 58 insertions, 25 deletions
diff --git a/usr.bin/unifdef/unifdef.c b/usr.bin/unifdef/unifdef.c index cdcc403..b8f99f8 100644 --- a/usr.bin/unifdef/unifdef.c +++ b/usr.bin/unifdef/unifdef.c @@ -56,12 +56,12 @@ #include <string.h> #include <unistd.h> -#ifdef __IDSTRING -__IDSTRING(dotat, "$dotat: unifdef/unifdef.c,v 1.198 2010/02/19 16:37:05 fanf2 Exp $"); -#endif -#ifdef __FBSDID -__FBSDID("$FreeBSD$"); -#endif +const char copyright[] = + "@(#) $Version: unifdef-2.3 $\n" + "@(#) $FreeBSD$\n" + "@(#) $Author: Tony Finch (dot@dotat.at) $\n" + "@(#) $URL: http://dotat.at/prog/unifdef $\n" +; /* types of input lines: */ typedef enum { @@ -172,6 +172,7 @@ static bool strictlogic; /* -K: keep ambiguous #ifs */ static bool killconsts; /* -k: eval constant #ifs */ static bool lnnum; /* -n: add #line directives */ static bool symlist; /* -s: output symbol list */ +static bool symdepth; /* -S: output symbol depth */ static bool text; /* -t: this is a text file */ static const char *symname[MAXSYMS]; /* symbol name */ @@ -204,6 +205,8 @@ static int delcount; /* count of deleted lines */ static unsigned blankcount; /* count of blank lines */ static unsigned blankmax; /* maximum recent blankcount */ static bool constexpr; /* constant #if expression */ +static bool zerosyms = true; /* to format symdepth output */ +static bool firstsym; /* ditto */ static int exitstat; /* program exit status */ @@ -228,6 +231,7 @@ static void state(Ifstate); static int strlcmp(const char *, const char *, size_t); static void unnest(void); static void usage(void); +static void version(void); #define endsym(c) (!isalnum((unsigned char)c) && c != '_') @@ -239,7 +243,7 @@ main(int argc, char *argv[]) { int opt; - while ((opt = getopt(argc, argv, "i:D:U:I:o:BbcdeKklnst")) != -1) + while ((opt = getopt(argc, argv, "i:D:U:I:o:bBcdeKklnsStV")) != -1) switch (opt) { case 'i': /* treat stuff controlled by these symbols as text */ /* @@ -261,16 +265,15 @@ main(int argc, char *argv[]) case 'U': /* undef a symbol */ addsym(false, false, optarg); break; - case 'I': - /* no-op for compatibility with cpp */ - break; - case 'B': /* compress blank lines around removed section */ - compblank = true; + case 'I': /* no-op for compatibility with cpp */ break; case 'b': /* blank deleted lines instead of omitting them */ case 'l': /* backwards compatibility */ lnblank = true; break; + case 'B': /* compress blank lines around removed section */ + compblank = true; + break; case 'c': /* treat -D as -U and vice versa */ complement = true; break; @@ -295,9 +298,14 @@ main(int argc, char *argv[]) case 's': /* only output list of symbols that control #ifs */ symlist = true; break; + case 'S': /* list symbols with their nesting depth */ + symlist = symdepth = true; + break; case 't': /* don't parse C comments */ text = true; break; + case 'V': /* print version */ + version(); default: usage(); } @@ -309,7 +317,7 @@ main(int argc, char *argv[]) errx(2, "can only do one file"); } else if (argc == 1 && strcmp(*argv, "-") != 0) { filename = *argv; - input = fopen(filename, "r"); + input = fopen(filename, "rb"); if (input == NULL) err(2, "can't open %s", filename); } else { @@ -345,12 +353,12 @@ main(int argc, char *argv[]) TEMPLATE); ofd = mkstemp(tempname); if (ofd != -1) - output = fdopen(ofd, "w+"); + output = fdopen(ofd, "wb+"); if (output == NULL) err(2, "can't create temporary file"); - fchmod(ofd, ist.st_mode & ACCESSPERMS); + fchmod(ofd, ist.st_mode & (S_IRWXU|S_IRWXG|S_IRWXO)); } else { - output = fopen(ofilename, "w"); + output = fopen(ofilename, "wb"); if (output == NULL) err(2, "can't open %s", ofilename); } @@ -360,9 +368,23 @@ main(int argc, char *argv[]) } static void +version(void) +{ + const char *c = copyright; + for (;;) { + while (*++c != '$') + if (*c == '\0') + exit(0); + while (*++c != '$') + putc(*c, stderr); + putc('\n', stderr); + } +} + +static void usage(void) { - fprintf(stderr, "usage: unifdef [-BbcdeKknst] [-Ipath]" + fprintf(stderr, "usage: unifdef [-bBcdeKknsStV] [-Ipath]" " [-Dsym[=val]] [-Usym] [-iDsym[=val]] [-iUsym] ... [file]\n"); exit(2); } @@ -557,6 +579,8 @@ flushline(bool keep) delcount += 1; blankcount = 0; } + if (debugging) + fflush(output); } /* @@ -565,17 +589,14 @@ flushline(bool keep) static void process(void) { - Linetype lineval; - /* When compressing blank lines, act as if the file is preceded by a large number of blank lines. */ blankmax = blankcount = 1000; for (;;) { - linenum++; - lineval = parseline(); + Linetype lineval = parseline(); trans_table[ifstate[depth]][lineval](); - debug("process %s -> %s depth %d", - linetype_name[lineval], + debug("process line %d %s -> %s depth %d", + linenum, linetype_name[lineval], ifstate_name[ifstate[depth]], depth); } } @@ -586,6 +607,8 @@ process(void) static void closeout(void) { + if (symdepth && !zerosyms) + printf("\n"); if (fclose(output) == EOF) { warn("couldn't write to %s", ofilename); if (overwriting) { @@ -628,6 +651,7 @@ parseline(void) Linetype retval; Comment_state wascomment; + linenum++; if (fgets(tline, MAXLINE, input) == NULL) return (LT_EOF); if (newline == NULL) { @@ -642,6 +666,7 @@ parseline(void) if (linestate == LS_START) { if (*cp == '#') { linestate = LS_HASH; + firstsym = true; cp = skipcomment(cp + 1); } else if (*cp != '\0') linestate = LS_DIRTY; @@ -715,7 +740,7 @@ parseline(void) while (*cp != '\0') cp = skipcomment(cp + 1); } - debug("parser %s comment %s line", + debug("parser line %d state %s comment %s line", linenum, comment_name[incomment], linestate_name[linestate]); return (retval); } @@ -1108,7 +1133,13 @@ findsym(const char *str) if (cp == str) return (-1); if (symlist) { - printf("%.*s\n", (int)(cp-str), str); + if (symdepth && firstsym) + printf("%s%3d", zerosyms ? "" : "\n", depth); + firstsym = zerosyms = false; + printf("%s%.*s%s", + symdepth ? " " : "", + (int)(cp-str), str, + symdepth ? "" : "\n"); /* we don't care about the value of the symbol */ return (0); } @@ -1153,6 +1184,8 @@ addsym(bool ignorethis, bool definethis, char *sym) usage(); value[symind] = NULL; } + debug("addsym %s=%s", symname[symind], + value[symind] ? value[symind] : "undef"); } /* |
