X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/0138ab0e9b1e8fa59be141338d599277095dec8c..28ec221002d755d33c41fa4b5d9673eee0abef9d:/sbr/fmt_compile.c diff --git a/sbr/fmt_compile.c b/sbr/fmt_compile.c index 4409e628..b0ce6462 100644 --- a/sbr/fmt_compile.c +++ b/sbr/fmt_compile.c @@ -1,6 +1,4 @@ - -/* - * fmt_compile.c -- "compile" format strings for fmt_scan +/* fmt_compile.c -- "compile" format strings for fmt_scan * * This code is Copyright (c) 2002, by the authors of nmh. See the * COPYRIGHT file in the root directory of the nmh distribution for @@ -16,7 +14,7 @@ * There is a NOT a one-to-one correspondence between format strings and * format instructions; some functions have side effects that can result * in multiple instructions being generated. The exact list of instructions - * generated by a format string can be seem with the nmh fmtdump utility. + * generated by a format string can be seem with the nmh fmttest utility. * * A list of format instructions can be found in fmt_compile.h. * @@ -35,7 +33,7 @@ * * - Add the code in fmt_scan.c to handle your new function. * - * - Add code to fmtdump.c to display your new function. + * - Add code to fmttest.c to display your new function. * * - Document the new function in the mh-format(5) man page. * @@ -82,6 +80,13 @@ extern struct mailname fmt_mnull; #define TF_MYNAME 9 /* special - get current name of user */ #define TF_MYHOST 10 /* special - get "local" hostname */ #define TF_LMBOX 11 /* special - get full local mailbox */ +#define TF_BOLD 12 /* special - enter terminal bold mode */ +#define TF_UNDERLN 13 /* special - enter underline mode */ +#define TF_STNDOUT 14 /* special - enter underline mode */ +#define TF_RESET 15 /* special - reset terminal modes */ +#define TF_HASCLR 16 /* special - terminal have color? */ +#define TF_FGCOLR 17 /* special - foreground term color */ +#define TF_BGCOLR 18 /* special - background term color */ /* ftable->flags */ /* NB that TFL_PUTS is also used to decide whether the test @@ -100,7 +105,9 @@ extern struct mailname fmt_mnull; * what maps a particular function name into a format instruction. * type - The type of argument this function expects. Those types are * listed above (with the TF_ prefix). This affects what gets - * placed in the format instruction (the f_un union). + * placed in the format instruction (the f_un union). Also, + * instructions that require special handling are distinguished + * here (TF_MYMBOX is one example). * f_type - The instruction corresponding to this function (from the list * in fmt_compile.h). * extra - Used by some functions to provide extra data to the compiler. @@ -150,6 +157,8 @@ static struct ftable functable[] = { { "decodecomp", TF_COMP, FT_LS_DECODECOMP, 0, TFL_PUTS }, { "decode", TF_EXPR, FT_LS_DECODE, 0, TFL_PUTS }, { "trim", TF_EXPR, FT_LS_TRIM, 0, 0 }, + { "kilo", TF_EXPR, FT_LS_KILO, 0, TFL_PUTS }, + { "kibi", TF_EXPR, FT_LS_KIBI, 0, TFL_PUTS }, { "compval", TF_COMP, FT_LV_COMP, 0, TFL_PUTN }, { "compflag", TF_COMP, FT_LV_COMPFLAG, 0, TFL_PUTN }, { "num", TF_NUM, FT_LV_LIT, 0, TFL_PUTN }, @@ -166,6 +175,7 @@ static struct ftable functable[] = { { "localmbox", TF_LMBOX, FT_LS_LIT, 0, TFL_PUTS }, { "plus", TF_NUM, FT_LV_PLUS_L, 0, TFL_PUTN }, { "minus", TF_NUM, FT_LV_MINUS_L, 0, TFL_PUTN }, + { "multiply", TF_NUM, FT_LV_MULTIPLY_L, 0, TFL_PUTN }, { "divide", TF_NUM, FT_LV_DIVIDE_L, 0, TFL_PUTN }, { "modulo", TF_NUM, FT_LV_MODULO_L, 0, TFL_PUTN }, { "charleft", TF_NONE, FT_LV_CHAR_LEFT, 0, TFL_PUTN }, @@ -212,19 +222,59 @@ static struct ftable functable[] = { { "friendly", TF_COMP, FT_LS_FRIENDLY, FT_PARSEADDR, TFL_PUTS }, { "mymbox", TF_COMP, FT_LV_COMPFLAG, FT_MYMBOX, TFL_PUTN }, + { "getmymbox", TF_COMP, FT_STR, FT_GETMYMBOX, 0 }, + { "getmyaddr", TF_COMP, FT_LS_ADDR, FT_GETMYADDR, TFL_PUTS }, - { "unquote", TF_EXPR, FT_LS_UNQUOTE, 0, TFL_PUTS}, + { "unquote", TF_EXPR, FT_LS_UNQUOTE, 0, TFL_PUTS }, + + { "bold", TF_BOLD, FT_LS_LIT, 0, TFL_PUTS }, + { "underline", TF_UNDERLN,FT_LS_LIT, 0, TFL_PUTS }, + { "standout", TF_STNDOUT,FT_LS_LIT, 0, TFL_PUTS }, + { "resetterm", TF_RESET, FT_LS_LIT, 0, TFL_PUTS }, + { "hascolor", TF_HASCLR, FT_LV_LIT, 0, 0 }, + { "fgcolor", TF_FGCOLR, FT_LS_LIT, 0, TFL_PUTS }, + { "bgcolor", TF_BGCOLR, FT_LS_LIT, 0, TFL_PUTS }, { NULL, 0, 0, 0, 0 } }; -/* - * Hash function for component name. The function should be - * case independent and probably shouldn't involve a routine - * call. This function is pretty good but will not work on - * single character component names. +/* + * A mapping of color names to terminfo color numbers. + * + * There are two sets of terminal-setting codes: 'setaf/setab' (ANSI) and + * 'setf/setb'. Different terminals support different capabilities, so + * we provide a mapping for both. I'm not crazy about putting numbers + * directly in here, but it seems these are well defined by terminfo + * so it should be okay. */ -#define CHASH(nm) (((((nm)[0]) - ((nm)[1])) & 0x1f) + (((nm)[2]) & 0x5f)) + +struct colormap { + char *colorname; /* Name of color */ + int ansinum; /* The ANSI escape color number */ + int nonansinum; /* The non-ANSI escape color number */ +}; + +static struct colormap colortable[] = { + { "black", 0, 0 }, + { "red", 1, 4 }, + { "green", 2, 2 }, + { "yellow", 3, 6 }, + { "blue", 4, 1 }, + { "magenta", 5, 5 }, + { "cyan", 6, 3 }, + { "white", 7, 7 }, + { NULL, 0, 0 } +}; + +/* Hash function for component name. Deliberately avoids a function + * call. Is case independent. Covers interval [0, 126] so never uses + * the last element of wantcomp[]. This function is "pretty good". */ +#define CHASH(nm) ( \ + (( \ + ((nm)[0]) - ((nm)[0] ? ((nm)[1]) : 0) \ + ) & 0x1f) + \ + ((nm[1]) ? (((nm)[2]) & 0x5f) : 0) \ + ) /* * Find a component in the hash table. @@ -237,8 +287,8 @@ static struct ftable functable[] = { /* Add new component to the hash table */ #define NEWCOMP(cm,name) do { \ - cm = ((struct comp *) calloc(1, sizeof (struct comp)));\ - cm->c_name = getcpy(name);\ + NEW0(cm);\ + cm->c_name = mh_xstrdup(name);\ cm->c_refcount++;\ ncomp++;\ i = CHASH(name);\ @@ -247,7 +297,7 @@ static struct ftable functable[] = { } while (0) #define NEWFMT (next_fp++) -#define NEW(type,fill,wid) do {\ +#define NEW_FP(type,fill,wid) do {\ fp=NEWFMT; fp->f_type=(type); fp->f_fill=(fill); fp->f_width=(wid); \ } while (0) @@ -262,12 +312,12 @@ static struct ftable functable[] = { cm->c_refcount++; \ } while (0) -#define LV(type, value) do { NEW(type,0,0); fp->f_value = (value); } while (0) -#define LS(type, str) do { NEW(type,0,0); fp->f_text = getcpy(str); fp->f_flags |= FF_STRALLOC; } while (0) +#define LV(type, value) do { NEW_FP(type,0,0); fp->f_value = (value); } while (0) +#define LS(type, str) do { NEW_FP(type,0,0); fp->f_text = getcpy(str); fp->f_flags |= FF_STRALLOC; } while (0) -#define PUTCOMP(comp) do { NEW(FT_COMP,0,0); ADDC(comp); } while (0) -#define PUTLIT(str) do { NEW(FT_LIT,0,0); fp->f_text = getcpy(str); fp->f_flags |= FF_STRALLOC; } while (0) -#define PUTC(c) do { NEW(FT_CHAR,0,0); fp->f_char = (c); } while (0) +#define PUTCOMP(comp) do { NEW_FP(FT_COMP,0,0); ADDC(comp); } while (0) +#define PUTLIT(str) do { NEW_FP(FT_LIT,0,0); fp->f_text = getcpy(str); fp->f_flags |= FF_STRALLOC; } while (0) +#define PUTC(c) do { NEW_FP(FT_CHAR,0,0); fp->f_char = (c); } while (0) static char *format_string; static char *usr_fstring; /* for CERROR */ @@ -289,16 +339,15 @@ static char *do_if(char *); static void free_component(struct comp *); static void free_comptable(void); - /* * Lookup a function name in the functable */ static struct ftable * lookup(char *name) { - register struct ftable *t = functable; - register char *nm; - register char c = *name; + struct ftable *t = functable; + char *nm; + char c = *name; while ((nm = t->name)) { if (*nm == c && strcmp (nm, name) == 0) @@ -316,19 +365,15 @@ compile_error(char *str, char *cp) int i, errpos, errctx; errpos = cp - format_string; - errctx = errpos > 20 ? 20 : errpos; + errctx = min(errpos, 20); usr_fstring[errpos] = '\0'; for (i = errpos-errctx; i < errpos; i++) { -#ifdef LOCALE if (iscntrl((unsigned char) usr_fstring[i])) -#else - if (usr_fstring[i] < 32) -#endif usr_fstring[i] = '_'; } - advise(NULL, "\"%s\": format compile error - %s", + inform("\"%s\": format compile error - %s", &usr_fstring[errpos-errctx], str); adios (NULL, "%*s", errctx+1, "^"); } @@ -342,11 +387,11 @@ compile_error(char *str, char *cp) int fmt_compile(char *fstring, struct format **fmt, int reset_comptable) { - register char *cp; + char *cp; size_t i; static int comptable_initialized = 0; - format_string = getcpy (fstring); + format_string = mh_xstrdup(fstring); usr_fstring = fstring; if (reset_comptable || !comptable_initialized) { @@ -354,8 +399,6 @@ fmt_compile(char *fstring, struct format **fmt, int reset_comptable) comptable_initialized = 1; } - memset((char *) &fmt_mnull, 0, sizeof(fmt_mnull)); - /* it takes at least 4 char to generate one format so we * allocate a worst-case format array using 1/4 the length * of the format string. We actually need twice this much @@ -364,11 +407,7 @@ fmt_compile(char *fstring, struct format **fmt, int reset_comptable) */ i = strlen(fstring)/2 + 1; if (i==1) i++; - next_fp = formatvec = (struct format *)calloc ((size_t) i, - sizeof(struct format)); - if (next_fp == NULL) - adios (NULL, "unable to allocate format storage"); - + next_fp = formatvec = mh_xcalloc(i, sizeof *next_fp); infunction = 0; cp = compile(format_string); @@ -385,8 +424,8 @@ fmt_compile(char *fstring, struct format **fmt, int reset_comptable) static char * compile (char *sp) { - register char *cp = sp; - register int c; + char *cp = sp; + int c; for (;;) { sp = cp; @@ -446,13 +485,13 @@ compile (char *sp) static char * do_spec(char *sp) { - register char *cp = sp; - register int c; + char *cp = sp; + int c; #ifndef lint - register int ljust = 0; + int ljust = 0; #endif /* not lint */ - register int wid = 0; - register char fill = ' '; + int wid = 0; + char fill = ' '; c = *cp++; if (c == '-') { @@ -502,9 +541,9 @@ do_spec(char *sp) static char * do_name(char *sp, int preprocess) { - register char *cp = sp; - register int c; - register int i; + char *cp = sp; + int c; + int i; static int primed = 0; while (isalnum(c = *cp++) || c == '-' || c == '_') @@ -520,19 +559,24 @@ do_name(char *sp, int preprocess) if (cm->c_type & CT_ADDR) { CERROR("component used as both date and address"); } - cm->c_tws = (struct tws *) - calloc((size_t) 1, sizeof(*cm->c_tws)); + if (cm->c_tws) { + memset (cm->c_tws, 0, sizeof *cm->c_tws); + } else { + NEW0(cm->c_tws); + } fp->f_type = preprocess; PUTCOMP(sp); cm->c_type |= CT_DATE; break; case FT_MYMBOX: + case FT_GETMYMBOX: + case FT_GETMYADDR: if (!primed) { ismymbox ((struct mailname *) 0); primed++; } - /* fall through */ + /* FALLTHRU */ case FT_PARSEADDR: if (cm->c_type & CT_DATE) { CERROR("component used as both date and address"); @@ -560,10 +604,10 @@ do_name(char *sp, int preprocess) static char * do_func(char *sp) { - register char *cp = sp; - register int c; - register struct ftable *t; - register int n; + char *cp = sp; + int c; + struct ftable *t; + int n; int mflag; /* minus sign in NUM */ infunction++; @@ -632,13 +676,69 @@ do_func(char *sp) LS(t->f_type, getlocalmbox()); break; + case TF_BOLD: + LS(t->f_type, get_term_stringcap("bold")); + break; + + case TF_UNDERLN: + LS(t->f_type, get_term_stringcap("smul")); + break; + + case TF_STNDOUT: + LS(t->f_type, get_term_stringcap("smso")); + break; + + case TF_RESET: + LS(t->f_type, get_term_stringcap("sgr0")); + break; + + case TF_HASCLR: + LV(t->f_type, get_term_numcap("colors") > 1); + break; + + case TF_FGCOLR: + case TF_BGCOLR: { + struct colormap *cmap = colortable; + char *code; + + sp = cp - 1; + while (c && c != ')') + c = *cp++; + cp[-1] = '\0'; + + while (cmap->colorname != NULL) { + if (strcasecmp(sp, cmap->colorname) == 0) + break; + cmap++; + } + + if (cmap->colorname == NULL) { + CERROR("Unknown color name"); + break; + } + + code = get_term_stringparm(t->type == TF_FGCOLR ? "setaf" : "setab", + cmap->ansinum, 0); + + /* + * If this doesn't have anything, try falling back to setf/setb + */ + + if (! code) + code = get_term_stringparm(t->type == TF_FGCOLR ? "setf" : "setb", + cmap->nonansinum, 0); + + LS(t->f_type, code); + break; + } + case TF_NOW: LV(t->f_type, time((time_t *) 0)); break; case TF_EXPR_SV: LV(FT_SAVESTR, 0); - /* fall through */ + /* FALLTHRU */ case TF_EXPR: *--cp = c; cp = do_expr(cp, t->extra); @@ -668,8 +768,8 @@ do_func(char *sp) static char * do_expr (char *sp, int preprocess) { - register char *cp = sp; - register int c; + char *cp = sp; + int c; if ((c = *cp++) == '{') { cp = do_name (cp, preprocess); @@ -697,7 +797,7 @@ do_expr (char *sp, int preprocess) * * Okay, got some more information on this from John L. Romine! From an * email he sent to the nmh-workers mailing list on December 2, 2010, he - * explains it thusly: + * explains it so: * * In this case (scan, formatsbr) it has to do with an extension to * the mh-format syntax to allow for looping. @@ -729,7 +829,7 @@ do_expr (char *sp, int preprocess) static char * do_loop(char *sp) { - register char *cp = sp; + char *cp = sp; struct format *floop; floop = next_fp; @@ -753,10 +853,10 @@ do_loop(char *sp) static char * do_if(char *sp) { - register char *cp = sp; - register struct format *fexpr, + char *cp = sp; + struct format *fexpr, *fif = (struct format *)NULL; - register int c = '<'; + int c = '<'; for (;;) { if (c == '<') { /* doing an IF */ @@ -856,6 +956,23 @@ fmt_free(struct format *fmt, int reset_comptable) free_comptable(); } +/* + * Free just the text strings from all of the component hash table entries + */ + +void +fmt_freecomptext(void) +{ + unsigned int i; + struct comp *cm; + + for (i = 0; i < sizeof(wantcomp)/sizeof(wantcomp[0]); i++) + for (cm = wantcomp[i]; cm; cm = cm->c_next) { + mh_xfree(cm->c_text); + cm->c_text = NULL; + } +} + /* * Find a component in our hash table. This is just a public interface to * the FINDCOMP macro, so we don't have to expose our hash table. @@ -881,7 +998,7 @@ fmt_findcasecomp(char *component) struct comp *cm; for (cm = wantcomp[CHASH(component)]; cm; cm = cm->c_next) - if (mh_strcasecmp(component, cm->c_name) == 0) + if (strcasecmp(component, FENDNULL(cm->c_name)) == 0) break; return cm; @@ -933,18 +1050,18 @@ fmt_addcomptext(char *component, char *text) char *cp; while (cptr) { - if (mh_strcasecmp(component, cptr->c_name) == 0) { + if (strcasecmp(component, FENDNULL(cptr->c_name)) == 0) { found++; if (! cptr->c_text) { - cptr->c_text = getcpy(text); + cptr->c_text = getcpy(text); } else { - i = strlen(cp = cptr->c_text) - 1; + i = strlen(cp = cptr->c_text) - 1; if (cp[i] == '\n') { if (cptr->c_type & CT_ADDR) { - cp[i] = '\0'; + cp[i] = '\0'; cp = add(",\n\t", cp); } else { - cp = add("\t", cp); + cp = add("\t", cp); } } cptr->c_text = add(text, cp); @@ -968,11 +1085,30 @@ fmt_appendcomp(int bucket, char *component, char *text) if (bucket != -1) { for (cptr = wantcomp[bucket]; cptr; cptr = cptr->c_next) - if (mh_strcasecmp(component, cptr->c_name) == 0) + if (strcasecmp(component, FENDNULL(cptr->c_name)) == 0) cptr->c_text = add(text, cptr->c_text); } } +/* + * Iterate over our component hash table + */ + +struct comp * +fmt_nextcomp(struct comp *comp, unsigned int *bucket) +{ + if (comp == NULL) + *bucket = 0; + else + comp = comp->c_next; + + while (comp == NULL && *bucket < sizeof(wantcomp)/sizeof(wantcomp[0])) { + comp = wantcomp[(*bucket)++]; + } + + return comp; +} + /* * Free and reset our component hash table */ @@ -1006,10 +1142,8 @@ free_component(struct comp *cm) { if (--cm->c_refcount <= 0) { /* Shouldn't ever be NULL, but just in case ... */ - if (cm->c_name) - free(cm->c_name); - if (cm->c_text) - free(cm->c_text); + mh_xfree(cm->c_name); + mh_xfree(cm->c_text); if (cm->c_type & CT_DATE) free(cm->c_tws); if (cm->c_type & CT_ADDR && cm->c_mn && cm->c_mn != &fmt_mnull)