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-rw-r--r--src/internal/argv/argv.h942
1 files changed, 0 insertions, 942 deletions
diff --git a/src/internal/argv/argv.h b/src/internal/argv/argv.h
deleted file mode 100644
index a730e76..0000000
--- a/src/internal/argv/argv.h
+++ /dev/null
@@ -1,942 +0,0 @@
-/****************************************************************************/
-/* argv.h: a thread-safe argument vector parser and usage screen generator */
-/* Copyright (C) 2015--2018 Z. Gilboa */
-/* Released under the Standard MIT License; see COPYING.SOFORT. */
-/* This file is (also) part of sofort: portable software project template. */
-/****************************************************************************/
-
-#ifndef ARGV_H
-#define ARGV_H
-
-#include <stdbool.h>
-#include <stdint.h>
-#include <stddef.h>
-#include <string.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <unistd.h>
-
-#define ARGV_VERBOSITY_NONE 0x00
-#define ARGV_VERBOSITY_ERRORS 0x01
-#define ARGV_VERBOSITY_STATUS 0x02
-#define ARGV_CLONE_VECTOR 0x80
-
-#ifndef ARGV_TAB_WIDTH
-#define ARGV_TAB_WIDTH 8
-#endif
-
-/*******************************************/
-/* */
-/* support of hybrid options */
-/* ------------------------- */
-/* hybrid options are very similar to */
-/* long options, yet are prefixed by */
-/* a single dash rather than two */
-/* (i.e. -std, -isystem). */
-/* hybrid options are supported by this */
-/* driver for compatibility with legacy */
-/* tools; note, however, that the use */
-/* of hybrid options should be strongly */
-/* discouraged due to the limitations */
-/* they impose on short options (for */
-/* example, a driver implementing -std */
-/* may not provide -s as a short option */
-/* that takes an arbitrary value). */
-/* */
-/* SPACE: -hybrid VALUE (i.e. -MF file) */
-/* EQUAL: -hybrid=VALUE (i.e. -std=c99) */
-/* COMMA: -hybrid,VALUE (i.e. -Wl,<arg>) */
-/* ONLY: -opt accepted, --opt rejected */
-/* JOINED: -optVALUE */
-/* */
-/*******************************************/
-
-
-#define ARGV_OPTION_HYBRID_NONE 0x00
-#define ARGV_OPTION_HYBRID_ONLY 0x01
-#define ARGV_OPTION_HYBRID_SPACE 0x02
-#define ARGV_OPTION_HYBRID_EQUAL 0x04
-#define ARGV_OPTION_HYBRID_COMMA 0x08
-#define ARGV_OPTION_HYBRID_JOINED 0x10
-#define ARGV_OPTION_HYBRID_CIRCUS (ARGV_OPTION_HYBRID_SPACE \
- | ARGV_OPTION_HYBRID_JOINED)
-#define ARGV_OPTION_HYBRID_DUAL (ARGV_OPTION_HYBRID_SPACE \
- | ARGV_OPTION_HYBRID_EQUAL)
-#define ARGV_OPTION_HYBRID_SWITCH (ARGV_OPTION_HYBRID_ONLY \
- | ARGV_OPTION_HYBRID_SPACE \
- | ARGV_OPTION_HYBRID_EQUAL \
- | ARGV_OPTION_HYBRID_COMMA \
- | ARGV_OPTION_HYBRID_JOINED)
-
-enum argv_optarg {
- ARGV_OPTARG_NONE,
- ARGV_OPTARG_REQUIRED,
- ARGV_OPTARG_OPTIONAL,
-};
-
-enum argv_mode {
- ARGV_MODE_SCAN,
- ARGV_MODE_COPY,
-};
-
-enum argv_error {
- ARGV_ERROR_OK,
- ARGV_ERROR_INTERNAL,
- ARGV_ERROR_SHORT_OPTION,
- ARGV_ERROR_LONG_OPTION,
- ARGV_ERROR_OPTARG_NONE,
- ARGV_ERROR_OPTARG_REQUIRED,
- ARGV_ERROR_OPTARG_PARADIGM,
- ARGV_ERROR_HYBRID_NONE,
- ARGV_ERROR_HYBRID_ONLY,
- ARGV_ERROR_HYBRID_SPACE,
- ARGV_ERROR_HYBRID_EQUAL,
- ARGV_ERROR_HYBRID_COMMA,
-};
-
-struct argv_option {
- const char * long_name;
- const char short_name;
- int tag;
- enum argv_optarg optarg;
- int flags;
- const char * paradigm;
- const char * argname;
- const char * description;
-};
-
-struct argv_entry {
- const char * arg;
- int tag;
- bool fopt;
- bool fval;
- bool fnoscan;
- enum argv_error errcode;
-};
-
-struct argv_meta {
- char ** argv;
- struct argv_entry * entries;
-};
-
-struct argv_ctx {
- int flags;
- int mode;
- int nentries;
- intptr_t unitidx;
- intptr_t erridx;
- enum argv_error errcode;
- const char * errch;
- const struct argv_option * erropt;
- const char * program;
-};
-
-#ifdef ARGV_DRIVER
-
-struct argv_meta_impl {
- char ** argv;
- char * strbuf;
- struct argv_meta meta;
-};
-
-static int argv_optv_init(
- const struct argv_option[],
- const struct argv_option **);
-
-static const char * argv_program_name(const char *);
-
-static void argv_usage(
- int fd,
- const char * header,
- const struct argv_option **,
- const char * mode);
-
-static struct argv_meta * argv_get(
- char **,
- const struct argv_option **,
- int flags,
- int fd);
-
-static void argv_free(struct argv_meta *);
-
-#ifndef argv_dprintf
-#define argv_dprintf dprintf
-#endif
-
-
-
-/*------------------------------------*/
-/* implementation of static functions */
-/*------------------------------------*/
-
-static int argv_optv_init(
- const struct argv_option options[],
- const struct argv_option ** optv)
-{
- const struct argv_option * option;
- int i;
-
- for (option=options,i=0; option->long_name || option->short_name; option++)
- optv[i++] = option;
-
- optv[i] = 0;
- return i;
-}
-
-static const struct argv_option * argv_short_option(
- const char * ch,
- const struct argv_option ** optv,
- struct argv_entry * entry)
-{
- const struct argv_option * option;
-
- for (; *optv; optv++) {
- option = *optv;
-
- if (option->short_name == *ch) {
- entry->tag = option->tag;
- entry->fopt = true;
- return option;
- }
- }
-
- return 0;
-}
-
-static const struct argv_option * argv_long_option(
- const char * ch,
- const struct argv_option ** optv,
- struct argv_entry * entry)
-{
- const struct argv_option * option;
- const char * arg;
- size_t len;
-
- for (; *optv; optv++) {
- option = *optv;
- len = option->long_name ? strlen(option->long_name) : 0;
-
- if (len && !(strncmp(option->long_name,ch,len))) {
- arg = ch + len;
-
- if (!*arg
- || (*arg == '=')
- || (option->flags & ARGV_OPTION_HYBRID_JOINED)
- || ((option->flags & ARGV_OPTION_HYBRID_COMMA)
- && (*arg == ','))) {
- entry->tag = option->tag;
- entry->fopt = true;
- return option;
- }
- }
- }
-
- return 0;
-}
-
-static inline bool is_short_option(const char * arg)
-{
- return (arg[0]=='-') && arg[1] && (arg[1]!='-');
-}
-
-static inline bool is_long_option(const char * arg)
-{
- return (arg[0]=='-') && (arg[1]=='-') && arg[2];
-}
-
-static inline bool is_last_option(const char * arg)
-{
- return (arg[0]=='-') && (arg[1]=='-') && !arg[2];
-}
-
-static inline bool is_hybrid_option(
- const char * arg,
- const struct argv_option ** optv)
-{
- const struct argv_option * option;
- struct argv_entry entry;
-
- if (!is_short_option(arg))
- return false;
-
- if (!(option = argv_long_option(++arg,optv,&entry)))
- return false;
-
- if (!(option->flags & ARGV_OPTION_HYBRID_SWITCH))
- if (argv_short_option(arg,optv,&entry))
- return false;
-
- return true;
-}
-
-static inline bool is_arg_in_paradigm(const char * arg, const char * paradigm)
-{
- size_t len;
- const char * ch;
-
- for (ch=paradigm,len=strlen(arg); ch; ) {
- if (!strncmp(arg,ch,len)) {
- if (!*(ch += len))
- return true;
- else if (*ch == '|')
- return true;
- }
-
- if ((ch = strchr(ch,'|')))
- ch++;
- }
-
- return false;
-}
-
-static inline const struct argv_option * option_from_tag(
- const struct argv_option ** optv,
- int tag)
-{
- for (; *optv; optv++)
- if (optv[0]->tag == tag)
- return optv[0];
- return 0;
-}
-
-static void argv_scan(
- char ** argv,
- const struct argv_option ** optv,
- struct argv_ctx * ctx,
- struct argv_meta * meta)
-{
- char ** parg;
- const char * ch;
- const char * val;
- const struct argv_option * option;
- struct argv_entry entry;
- struct argv_entry * mentry;
- enum argv_error ferr;
- bool fval;
- bool fnext;
- bool fshort;
- bool fhybrid;
- bool fnoscan;
-
- parg = &argv[1];
- ch = *parg;
- ferr = ARGV_ERROR_OK;
- fshort = false;
- fnoscan = false;
- fval = false;
- mentry = meta ? meta->entries : 0;
-
- ctx->unitidx = 0;
- ctx->erridx = 0;
-
- while (ch && (ferr == ARGV_ERROR_OK)) {
- option = 0;
- fhybrid = false;
-
- if (fnoscan)
- fval = true;
-
- else if (is_last_option(ch))
- fnoscan = true;
-
- else if (!fshort && is_hybrid_option(ch,optv))
- fhybrid = true;
-
- if (!fnoscan && !fhybrid && (fshort || is_short_option(ch))) {
- if (!fshort)
- ch++;
-
- if ((option = argv_short_option(ch,optv,&entry))) {
- if (ch[1]) {
- ch++;
- fnext = false;
- fshort = (option->optarg == ARGV_OPTARG_NONE);
- } else {
- parg++;
- ch = *parg;
- fnext = true;
- fshort = false;
- }
-
- if (option->optarg == ARGV_OPTARG_NONE) {
- if (!fnext && ch && (*ch == '-')) {
- ferr = ARGV_ERROR_OPTARG_NONE;
- } else {
- fval = false;
- }
-
- } else if (!fnext) {
- fval = true;
-
- } else if (option->optarg == ARGV_OPTARG_REQUIRED) {
- if (ch && is_short_option(ch))
- ferr = ARGV_ERROR_OPTARG_REQUIRED;
- else if (ch && is_long_option(ch))
- ferr = ARGV_ERROR_OPTARG_REQUIRED;
- else if (ch && is_last_option(ch))
- ferr = ARGV_ERROR_OPTARG_REQUIRED;
- else if (ch)
- fval = true;
- else
- ferr = ARGV_ERROR_OPTARG_REQUIRED;
- } else {
- /* ARGV_OPTARG_OPTIONAL */
- if (ch && is_short_option(ch))
- fval = false;
- else if (ch && is_long_option(ch))
- fval = false;
- else if (ch && is_last_option(ch))
- fval = false;
- else if (fnext)
- fval = false;
- else
- fval = ch;
- }
- } else {
- ferr = ARGV_ERROR_SHORT_OPTION;
- }
-
- } else if (!fnoscan && (fhybrid || is_long_option(ch))) {
- ch += (fhybrid ? 1 : 2);
-
- if ((option = argv_long_option(ch,optv,&entry))) {
- val = ch + strlen(option->long_name);
-
- /* val[0] is either '=' (or ',') or '\0' */
- if (!val[0]) {
- parg++;
- ch = *parg;
- }
-
- if (fhybrid && !(option->flags & ARGV_OPTION_HYBRID_SWITCH))
- ferr = ARGV_ERROR_HYBRID_NONE;
- else if (!fhybrid && (option->flags & ARGV_OPTION_HYBRID_ONLY))
- ferr = ARGV_ERROR_HYBRID_ONLY;
- else if (option->optarg == ARGV_OPTARG_NONE) {
- if (val[0]) {
- ferr = ARGV_ERROR_OPTARG_NONE;
- ctx->errch = val + 1;
- } else
- fval = false;
- } else if (val[0] && (option->flags & ARGV_OPTION_HYBRID_JOINED)) {
- fval = true;
- ch = val;
- } else if (fhybrid && !val[0] && !(option->flags & ARGV_OPTION_HYBRID_SPACE))
- ferr = ARGV_ERROR_HYBRID_SPACE;
- else if (fhybrid && (val[0]=='=') && !(option->flags & ARGV_OPTION_HYBRID_EQUAL))
- ferr = ARGV_ERROR_HYBRID_EQUAL;
- else if (fhybrid && (val[0]==',') && !(option->flags & ARGV_OPTION_HYBRID_COMMA))
- ferr = ARGV_ERROR_HYBRID_COMMA;
- else if (!fhybrid && (val[0]==','))
- ferr = ARGV_ERROR_HYBRID_COMMA;
- else if (val[0] && !val[1])
- ferr = ARGV_ERROR_OPTARG_REQUIRED;
- else if (val[0] && val[1]) {
- fval = true;
- ch = ++val;
- } else if (option->optarg == ARGV_OPTARG_REQUIRED) {
- if (!val[0] && !*parg)
- ferr = ARGV_ERROR_OPTARG_REQUIRED;
- else if (*parg && is_short_option(*parg))
- ferr = ARGV_ERROR_OPTARG_REQUIRED;
- else if (*parg && is_long_option(*parg))
- ferr = ARGV_ERROR_OPTARG_REQUIRED;
- else if (*parg && is_last_option(*parg))
- ferr = ARGV_ERROR_OPTARG_REQUIRED;
- else
- fval = true;
- } else {
- /* ARGV_OPTARG_OPTIONAL */
- fval = val[0];
- }
- } else
- ferr = ARGV_ERROR_LONG_OPTION;
- }
-
- if (ferr == ARGV_ERROR_OK)
- if (option && fval && option->paradigm)
- if (!is_arg_in_paradigm(ch,option->paradigm))
- ferr = ARGV_ERROR_OPTARG_PARADIGM;
-
- if (ferr == ARGV_ERROR_OK)
- if (!option && !ctx->unitidx)
- ctx->unitidx = parg - argv;
-
- if (ferr != ARGV_ERROR_OK) {
- ctx->errcode = ferr;
- ctx->errch = ctx->errch ? ctx->errch : ch;
- ctx->erropt = option;
- ctx->erridx = parg - argv;
- return;
- } else if (ctx->mode == ARGV_MODE_SCAN) {
- if (!fnoscan)
- ctx->nentries++;
- else if (fval)
- ctx->nentries++;
-
- if (fval || !option) {
- parg++;
- ch = *parg;
- }
- } else if (ctx->mode == ARGV_MODE_COPY) {
- if (fnoscan) {
- if (fval) {
- mentry->arg = ch;
- mentry->fnoscan = true;
- mentry++;
- }
-
- parg++;
- ch = *parg;
- } else if (option) {
- mentry->arg = fval ? ch : 0;
- mentry->tag = option->tag;
- mentry->fopt = true;
- mentry->fval = fval;
- mentry++;
-
- if (fval) {
- parg++;
- ch = *parg;
- }
- } else {
- mentry->arg = ch;
- mentry++;
- parg++;
- ch = *parg;
- }
- }
- }
-}
-
-static const char * argv_program_name(const char * program_path)
-{
- const char * ch;
-
- if (program_path) {
- if ((ch = strrchr(program_path,'/')))
- return *(++ch) ? ch : 0;
-
- if ((ch = strrchr(program_path,'\\')))
- return *(++ch) ? ch : 0;
- }
-
- return program_path;
-}
-
-static void argv_show_error(int fd, struct argv_ctx * ctx)
-{
- char opt_short_name[2] = {0,0};
-
- if (ctx->erropt && ctx->erropt->short_name)
- opt_short_name[0] = ctx->erropt->short_name;
-
- argv_dprintf(fd,"%s: error: ",ctx->program);
-
- switch (ctx->errcode) {
- case ARGV_ERROR_SHORT_OPTION:
- argv_dprintf(fd,"'-%c' is not a valid short option\n",*ctx->errch);
- break;
-
- case ARGV_ERROR_LONG_OPTION:
- argv_dprintf(fd,"'--%s' is not a valid long option\n",ctx->errch);
- break;
-
- case ARGV_ERROR_OPTARG_NONE:
- argv_dprintf(fd,"'%s' is not a valid option value for [%s%s%s%s%s] "
- "(option values may not be specified)\n",
- ctx->errch,
- opt_short_name[0] ? "-" : "",
- opt_short_name,
- opt_short_name[0] ? "," : "",
- ctx->erropt->long_name ? "--" : "",
- ctx->erropt->long_name);
- break;
-
- case ARGV_ERROR_OPTARG_REQUIRED:
- argv_dprintf(fd,"option [%s%s%s%s%s] requires %s %s%s%s\n",
- opt_short_name[0] ? "-" : "",
- opt_short_name,
- opt_short_name[0] ? "," : "",
- ctx->erropt->long_name ? "--" : "",
- ctx->erropt->long_name,
- ctx->erropt->paradigm ? "one of the following values:" : "a value",
- ctx->erropt->paradigm ? "{" : "",
- ctx->erropt->paradigm ? ctx->erropt->paradigm : "",
- ctx->erropt->paradigm ? "}" : "");
- break;
-
- case ARGV_ERROR_OPTARG_PARADIGM:
- argv_dprintf(fd,"'%s' is not a valid option value for [%s%s%s%s%s]={%s}\n",
- ctx->errch,
- opt_short_name[0] ? "-" : "",
- opt_short_name,
- opt_short_name[0] ? "," : "",
- ctx->erropt->long_name ? "--" : "",
- ctx->erropt->long_name,
- ctx->erropt->paradigm);
- break;
-
- case ARGV_ERROR_HYBRID_NONE:
- argv_dprintf(fd,"-%s is not a synonym for --%s\n",
- ctx->erropt->long_name,
- ctx->erropt->long_name);
- break;
-
- case ARGV_ERROR_HYBRID_ONLY:
- argv_dprintf(fd,"--%s is not a synonym for -%s\n",
- ctx->erropt->long_name,
- ctx->erropt->long_name);
- break;
-
- case ARGV_ERROR_HYBRID_SPACE:
- case ARGV_ERROR_HYBRID_EQUAL:
- case ARGV_ERROR_HYBRID_COMMA:
- argv_dprintf(fd,"-%s: illegal value assignment; valid syntax is "
- "-%s%sVAL\n",
- ctx->erropt->long_name,
- ctx->erropt->long_name,
- (ctx->erropt->flags & ARGV_OPTION_HYBRID_SPACE)
- ? " " : (ctx->erropt->flags & ARGV_OPTION_HYBRID_EQUAL)
- ? "=" : (ctx->erropt->flags & ARGV_OPTION_HYBRID_COMMA)
- ? "," : "");
-
- break;
-
- case ARGV_ERROR_INTERNAL:
- argv_dprintf(fd,"internal error");
- break;
-
- default:
- break;
- }
-}
-
-static void argv_show_status(
- int fd,
- const struct argv_option ** optv,
- struct argv_ctx * ctx,
- struct argv_meta * meta)
-{
- int argc;
- char ** argv;
- struct argv_entry * entry;
- const struct argv_option * option;
- char short_name[2] = {0};
- const char * space = "";
-
- (void)ctx;
-
- argv_dprintf(fd,"\n\nconcatenated command line:\n");
- for (argv=meta->argv; *argv; argv++) {
- argv_dprintf(fd,"%s%s",space,*argv);
- space = " ";
- }
-
- argv_dprintf(fd,"\n\nargument vector:\n");
- for (argc=0,argv=meta->argv; *argv; argc++,argv++)
- argv_dprintf(fd,"argv[%d]: %s\n",argc,*argv);
-
- argv_dprintf(fd,"\n\nparsed entries:\n");
- for (entry=meta->entries; entry->arg || entry->fopt; entry++)
- if (entry->fopt) {
- option = option_from_tag(optv,entry->tag);
- short_name[0] = option->short_name;
-
- if (entry->fval)
- argv_dprintf(fd,"[-%s,--%s] := %s\n",
- short_name,option->long_name,entry->arg);
- else
- argv_dprintf(fd,"[-%s,--%s]\n",
- short_name,option->long_name);
- } else
- argv_dprintf(fd,"<program arg> := %s\n",entry->arg);
-
- argv_dprintf(fd,"\n\n");
-}
-
-static struct argv_meta * argv_free_impl(struct argv_meta_impl * imeta)
-{
- if (imeta->argv)
- free(imeta->argv);
-
- if (imeta->strbuf)
- free(imeta->strbuf);
-
- if (imeta->meta.entries)
- free(imeta->meta.entries);
-
- free(imeta);
- return 0;
-}
-
-static struct argv_meta * argv_alloc(char ** argv, struct argv_ctx * ctx)
-{
- struct argv_meta_impl * imeta;
- char ** vector;
- char * dst;
- size_t size;
- int argc;
- int i;
-
- if (!(imeta = calloc(1,sizeof(*imeta))))
- return 0;
-
- if (ctx->flags & ARGV_CLONE_VECTOR) {
- for (vector=argv,argc=0,size=0; *vector; vector++) {
- size += strlen(*vector) + 1;
- argc++;
- }
-
- if (!(imeta->argv = calloc(argc+1,sizeof(char *))))
- return argv_free_impl(imeta);
- else if (!(imeta->strbuf = calloc(1,size+1)))
- return argv_free_impl(imeta);
-
- for (i=0,dst=imeta->strbuf; i<argc; i++) {
- strcpy(dst,argv[i]);
- imeta->argv[i] = dst;
- dst += strlen(dst)+1;
- }
-
- imeta->meta.argv = imeta->argv;
- } else
- imeta->meta.argv = argv;
-
- if (!(imeta->meta.entries = calloc(
- ctx->nentries+1,
- sizeof(struct argv_entry))))
- return argv_free_impl(imeta);
- else
- return &imeta->meta;
-}
-
-static struct argv_meta * argv_get(
- char ** argv,
- const struct argv_option ** optv,
- int flags,
- int fd)
-{
- struct argv_meta * meta;
- struct argv_ctx ctx = {flags,ARGV_MODE_SCAN,0,0,0,0,0,0,0};
-
- argv_scan(argv,optv,&ctx,0);
-
- if (ctx.errcode != ARGV_ERROR_OK) {
- ctx.program = argv_program_name(argv[0]);
-
- if (ctx.flags & ARGV_VERBOSITY_ERRORS)
- argv_show_error(fd,&ctx);
-
- return 0;
- }
-
- if (!(meta = argv_alloc(argv,&ctx)))
- return 0;
-
- ctx.mode = ARGV_MODE_COPY;
- argv_scan(meta->argv,optv,&ctx,meta);
-
- if (ctx.errcode != ARGV_ERROR_OK) {
- ctx.program = argv[0];
- ctx.errcode = ARGV_ERROR_INTERNAL;
- argv_show_error(fd,&ctx);
- argv_free(meta);
-
- return 0;
- }
-
- if (ctx.flags & ARGV_VERBOSITY_STATUS)
- argv_show_status(fd,optv,&ctx,meta);
-
- return meta;
-}
-
-static void argv_free(struct argv_meta * xmeta)
-{
- struct argv_meta_impl * imeta;
- uintptr_t addr;
-
- if (xmeta) {
- addr = (uintptr_t)xmeta - offsetof(struct argv_meta_impl,meta);
- imeta = (struct argv_meta_impl *)addr;
- argv_free_impl(imeta);
- }
-}
-
-static void argv_usage(
- int fd,
- const char * header,
- const struct argv_option ** options,
- const char * mode)
-{
- const struct argv_option ** optv;
- const struct argv_option * option;
- bool fshort,flong,fboth;
- size_t len,optlen,desclen;
- char cache;
- char * prefix;
- char * desc;
- char * mark;
- char * cap;
- char description[4096];
- char optstr [72];
- const size_t optcap = 64;
- const size_t width = 80;
- const char indent[] = " ";
- const char creset[] = "\x1b[0m";
- const char cbold [] = "\x1b[1m";
- const char cgreen[] = "\x1b[32m";
- const char cblue [] = "\x1b[34m";
- const char ccyan [] = "\x1b[36m";
- const char * color = ccyan;
- bool fcolor;
-
- fshort = mode ? !strcmp(mode,"short") : 0;
- flong = fshort ? 0 : mode && !strcmp(mode,"long");
- fboth = !fshort && !flong;
- fcolor = isatty(fd);
-
- if (fcolor)
- argv_dprintf(fd,"%s%s",cbold,cgreen);
-
- if (header)
- argv_dprintf(fd,"%s",header);
-
- for (optlen=0,optv=options; *optv; optv++) {
- option = *optv;
-
- /* indent + comma */
- len = fboth ? sizeof(indent) + 1 : sizeof(indent);
-
- /* -o */
- if (fshort || fboth)
- len += option->short_name
- ? 2 : 0;
-
- /* --option */
- if (flong || fboth)
- len += option->long_name
- ? 2 + strlen(option->long_name) : 0;
-
- /* optlen */
- if (len > optlen)
- optlen = len;
- }
-
- if (optlen >= optcap) {
- argv_dprintf(fd,
- "Option strings exceed %zu characters, "
- "please generate the usage screen manually.\n",
- optcap);
- return;
- }
-
- optlen += ARGV_TAB_WIDTH;
- optlen &= (~(ARGV_TAB_WIDTH-1));
- desclen = (optlen < width / 2) ? width - optlen : optlen;
-
- for (optv=options; *optv; optv++) {
- option = *optv;
-
- /* color */
- if (fcolor) {
- color = (color == ccyan) ? cblue : ccyan;
- argv_dprintf(fd,color);
- }
-
- /* description, using either paradigm or argname if applicable */
- snprintf(description,sizeof(description),option->description,
- option->paradigm
- ? option->paradigm
- : option->argname ? option->argname : "");
- description[sizeof(description)-1] = 0;
-
- /* long/hybrid option prefix (-/--) */
- prefix = option->flags & ARGV_OPTION_HYBRID_ONLY
- ? " -" : "--";
-
- /* option string */
- if (fboth && option->short_name && option->long_name)
- sprintf(optstr,"%s-%c,%s%s",
- indent,option->short_name,prefix,option->long_name);
-
- else if ((fshort || fboth) && option->short_name)
- sprintf(optstr,"%s-%c",indent,option->short_name);
-
- else if (flong && option->long_name)
- sprintf(optstr,"%s%s%s",
- indent,prefix,option->long_name);
-
- else if (fboth && option->long_name)
- sprintf(optstr,"%s %s%s",
- indent,prefix,option->long_name);
-
- else
- optstr[0] = 0;
-
- /* right-indented option buffer */
- if (description[0]) {
- len = strlen(optstr);
- sprintf(&optstr[len],"%-*c",(int)(optlen-len),' ');
- }
-
- /* single line? */
- if (optlen + strlen(description) < width) {
- argv_dprintf(fd,"%s%s\n",optstr,description);
-
- } else {
- desc = description;
- cap = desc + strlen(description);
-
- while (desc < cap) {
- mark = (desc + desclen >= cap)
- ? cap : desc + desclen;
-
- while (*mark && (mark > desc)
- && (*mark != ' ')
- && (*mark != '|')
- && (*mark != '\t')
- && (*mark != '\n'))
- mark--;
-
- if (mark == desc) {
- mark = (desc + desclen >= cap)
- ? cap : desc + desclen;
- cache = *mark;
- *mark = 0;
- } else if (*mark == '|') {
- cache = *mark;
- *mark = 0;
- } else {
- cache = 0;
- *mark = 0;
- }
-
- /* first line? */
- if (desc == description)
- argv_dprintf(fd,"%s%s\n",optstr,desc);
- else
- argv_dprintf(fd,"%-*c %s\n",
- (*desc == '|')
- ? (int)(optlen+1)
- : (int)optlen,
- ' ',desc);
-
- if (cache)
- *mark = cache;
- else
- mark++;
-
- desc = mark;
- }
- }
- }
-
- if (fcolor)
- argv_dprintf(fd,creset);
-}
-
-#endif
-
-#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 07:32:25 +0000