diff options
| -rw-r--r-- | src/internal/argv/argv.h | 208 |
1 files changed, 203 insertions, 5 deletions
diff --git a/src/internal/argv/argv.h b/src/internal/argv/argv.h index 939dbe3..8753ebb 100644 --- a/src/internal/argv/argv.h +++ b/src/internal/argv/argv.h @@ -13,6 +13,7 @@ #include <string.h> #include <stdlib.h> #include <stdio.h> +#include <ctype.h> #include <unistd.h> #define ARGV_VERBOSITY_NONE 0x00 @@ -57,16 +58,27 @@ #define ARGV_OPTION_HYBRID_EQUAL 0x04 #define ARGV_OPTION_HYBRID_COMMA 0x08 #define ARGV_OPTION_HYBRID_JOINED 0x10 + +#define ARGV_OPTION_KEYVAL_PAIR 0X20 +#define ARGV_OPTION_KEYVAL_ARRAY 0X40 +#define ARGV_OPTION_KEYVAL_MASK (ARGV_OPTION_KEYVAL_PAIR \ + | ARGV_OPTION_KEYVAL_ARRAY) + #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) +#define ARGV_KEYVAL_ASSIGN 0x01 +#define ARGV_KEYVAL_OVERRIDE 0x02 + enum argv_optarg { ARGV_OPTARG_NONE, ARGV_OPTARG_REQUIRED, @@ -92,6 +104,9 @@ enum argv_error { ARGV_ERROR_HYBRID_SPACE, ARGV_ERROR_HYBRID_EQUAL, ARGV_ERROR_HYBRID_COMMA, + ARGV_ERROR_KEYVAL_KEY, + ARGV_ERROR_KEYVAL_VALUE, + ARGV_ERROR_KEYVAL_ALLOC, }; struct argv_option { @@ -105,8 +120,15 @@ struct argv_option { const char * description; }; +struct argv_keyval { + const char * keyword; + const char * value; + int flags; +}; + struct argv_entry { const char * arg; + struct argv_keyval * keyv; int tag; bool fopt; bool fval; @@ -129,6 +151,7 @@ struct argv_ctx { const char * errch; const struct argv_option * erropt; const char * program; + size_t keyvlen; }; #ifdef ARGV_DRIVER @@ -136,6 +159,8 @@ struct argv_ctx { struct argv_meta_impl { char ** argv; char * strbuf; + char * keyvbuf; + char * keyvmark; struct argv_meta meta; }; @@ -305,12 +330,131 @@ static inline const struct argv_option * option_from_tag( return 0; } +static inline int argv_scan_keyval_array(struct argv_meta_impl * meta, struct argv_entry * entry) +{ + const char * ch; + char * dst; + int ncomma; + int cint; + struct argv_keyval * keyv; + + /* count key[val] elements, assume no comma after last element */ + for (ch=entry->arg,ncomma=1; *ch; ch++) { + if ((ch[0]=='\\') && (ch[1]==',')) { + ch++; + + } else if ((ch[0]==',')) { + ncomma++; + } + } + + /* keyval string buffer */ + dst = meta->keyvmark; + + /* allocate keyval array */ + if (!(entry->keyv = calloc(ncomma+1,sizeof(*entry->keyv)))) + return ARGV_ERROR_KEYVAL_ALLOC; + + /* create keyval array */ + entry->keyv->keyword = dst; + + for (ch=entry->arg,keyv=entry->keyv; *ch; ch++) { + if ((ch[0]=='\\') && (ch[1]==',')) { + *dst++ = ','; + ch++; + + } else if ((ch[0]==':') && (ch[1]=='=')) { + if (!keyv->keyword[0]) + return ARGV_ERROR_KEYVAL_KEY; + + keyv->flags = ARGV_KEYVAL_OVERRIDE; + keyv->value = ++dst; + ch++; + + } else if ((ch[0]=='=')) { + if (!keyv->keyword[0]) + return ARGV_ERROR_KEYVAL_KEY; + + keyv->flags = ARGV_KEYVAL_ASSIGN; + keyv->value = ++dst; + + } else if ((ch[0]==',')) { + for (; isblank(cint = ch[1]); ) + ch++; + + if (ch[1]) { + keyv++; + keyv->keyword = ++dst; + } + } else { + *dst++ = *ch; + } + } + + /* keyval string buffer */ + meta->keyvmark = ++dst; + + return ARGV_ERROR_OK; +} + +static inline int argv_scan_keyval_pair(struct argv_meta_impl * meta, struct argv_entry * entry) +{ + const char * ch; + char * dst; + struct argv_keyval * keyv; + + /* keyval string buffer */ + dst = meta->keyvmark; + + /* allocate keyval array */ + if (!(entry->keyv = calloc(2,sizeof(*entry->keyv)))) + return ARGV_ERROR_KEYVAL_ALLOC; + + /* create keyval array */ + entry->keyv->keyword = dst; + + for (ch=entry->arg,keyv=entry->keyv; *ch && !keyv->flags; ch++) { + if ((ch[0]=='\\') && (ch[1]==',')) { + *dst++ = ','; + ch++; + + } else if ((ch[0]==':') && (ch[1]=='=')) { + if (!keyv->keyword[0]) + return ARGV_ERROR_KEYVAL_KEY; + + keyv->flags = ARGV_KEYVAL_OVERRIDE; + keyv->value = ++dst; + ch++; + + } else if ((ch[0]=='=')) { + if (!keyv->keyword[0]) + return ARGV_ERROR_KEYVAL_KEY; + + keyv->flags = ARGV_KEYVAL_ASSIGN; + keyv->value = ++dst; + + } else { + *dst++ = *ch; + } + } + + for (; *ch; ) + *dst++ = *ch++; + + /* keyval string buffer */ + meta->keyvmark = ++dst; + + return ARGV_ERROR_OK; +} + static void argv_scan( char ** argv, const struct argv_option ** optv, struct argv_ctx * ctx, struct argv_meta * meta) { + struct argv_meta_impl * imeta; + uintptr_t addr; char ** parg; const char * ch; const char * val; @@ -324,6 +468,9 @@ static void argv_scan( bool fhybrid; bool fnoscan; + addr = (uintptr_t)meta - offsetof(struct argv_meta_impl,meta); + imeta = (struct argv_meta_impl *)addr; + parg = &argv[1]; ch = *parg; ferr = ARGV_ERROR_OK; @@ -495,13 +642,20 @@ static void argv_scan( if (!option && !ctx->unitidx) ctx->unitidx = parg - argv; + if (ferr == ARGV_ERROR_OK) + if (option && (option->flags & ARGV_OPTION_KEYVAL_MASK)) + if (ctx->mode == ARGV_MODE_SCAN) + ctx->keyvlen += strlen(ch) + 1; + 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 (ctx->mode == ARGV_MODE_SCAN) { if (!fnoscan) ctx->nentries++; else if (fval) @@ -511,12 +665,12 @@ static void argv_scan( parg++; ch = *parg; } + } else if (ctx->mode == ARGV_MODE_COPY) { if (fnoscan) { if (fval) { mentry->arg = ch; mentry->fnoscan = true; - mentry++; } parg++; @@ -526,7 +680,6 @@ static void argv_scan( mentry->tag = option->tag; mentry->fopt = true; mentry->fval = fval; - mentry++; if (fval) { parg++; @@ -534,11 +687,28 @@ static void argv_scan( } } else { mentry->arg = ch; - mentry++; parg++; ch = *parg; } } + + if (option && (option->flags & ARGV_OPTION_KEYVAL_PAIR)) + if (ctx->mode == ARGV_MODE_COPY) + ferr = argv_scan_keyval_pair(imeta,mentry); + + if (option && (option->flags & ARGV_OPTION_KEYVAL_ARRAY)) + if (ctx->mode == ARGV_MODE_COPY) + ferr = argv_scan_keyval_array(imeta,mentry); + + if (ferr != ARGV_ERROR_OK) { + ctx->errcode = ferr; + ctx->errch = ctx->errch ? ctx->errch : ch; + ctx->erropt = option; + ctx->erridx = parg - argv; + return; + } + + mentry++; } } @@ -663,6 +833,14 @@ static void argv_show_error(int fd, struct argv_ctx * ctx) break; + case ARGV_ERROR_KEYVAL_KEY: + argv_dprintf(fd,"illegal key detected in keyval argument\n"); + break; + + case ARGV_ERROR_KEYVAL_VALUE: + argv_dprintf(fd,"illegal value detected in keyval argument\n"); + break; + case ARGV_ERROR_INTERNAL: argv_dprintf(fd,"internal error"); break; @@ -719,6 +897,17 @@ static void argv_show_status( static struct argv_meta * argv_free_impl(struct argv_meta_impl * imeta) { + struct argv_entry * entry; + void * addr; + + if (imeta->keyvbuf) + for (entry=imeta->meta.entries; entry->fopt || entry->arg; entry++) + if (entry->keyv) + free((addr = entry->keyv)); + + if (imeta->keyvbuf) + free(imeta->keyvbuf); + if (imeta->argv) free(imeta->argv); @@ -774,6 +963,15 @@ static struct argv_meta * argv_alloc(char ** argv, struct argv_ctx * ctx) if (!imeta->meta.entries) return argv_free_impl(imeta); + if (ctx->keyvlen) { + imeta->keyvbuf = calloc( + ctx->keyvlen, + sizeof(char)); + + if (!(imeta->keyvmark = imeta->keyvbuf)) + return argv_free_impl(imeta); + } + return &imeta->meta; } @@ -784,7 +982,7 @@ static struct argv_meta * argv_get( int fd) { struct argv_meta * meta; - struct argv_ctx ctx = {flags,ARGV_MODE_SCAN,0,0,0,0,0,0,0}; + struct argv_ctx ctx = {flags,ARGV_MODE_SCAN,0,0,0,0,0,0,0,0}; argv_scan(argv,optv,&ctx,0); |