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xtr.c
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xtr.c
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/* COMPILE ME */
/* gcc optimized: gcc -march=native -mtune=generic xtr.c -o xtr */
/* cc plain: cc xtr.c -o xtr */
/* ALL EXTERNAL CODE POINTS */
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
/*
xtr - character eXTRapolator
Copyright (C) 2012 Triston J. Taylor
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
Contact: pc.wiz.tt@gmail.com
https://www.facebook.com/pc.wiz.tt
https://www.facebook.com/alt.bash
https://www.facebook.com/alt.c.pro.tech
Here is a rundown of the elected options.
+e | -i - Exclude LIST
-e | +i - Include LIST
-[...] - Exclude RANGE
+[...] - Include RANGE
s/LIST/[replacement text/] - swap char with text
a/LIST/[prefix text[/suffix text][/]] - prefix char optional suffix
-p "prefix" - set global prefix
-s "suffix" - set global suffix
-f hex|octal|char - set output format
use --help option to get online help
Affix Operations Cheat Sheet:
a/LIST/ - clear affixes for for LIST
a/LIST/p[/] - set p and s to p for LIST
a/LIST/p// - set p, ignore s for LIST
a/LIST//s[/] - ignore p, set s for LIST
a/LIST/p/s[/] - set p, set s for LIST
a/LIST/// - NOP
Where LIST may be any combination of ESCAPE, CHAR, and RANGE
For example:
"\n[a-c]123"
is a LIST of character values: (NEWLINE, a, b, c, 1, 2, 3)
In a useful example, we'll convert non-printing ascii values to dots, and pass the rest
through as plain text.
xtr -f char 's/[\0-\31][\127-\255]/.'
Here is a different main function, which is used to test the value scanner.
int main(int argc, char * argv[], char * env[]) {
char input[1024];
XTR_VALUE test;
while ((gets(input)) != NULL) {
test = xtr_utils_scan_value(input);
printf("scanned: %s\nvalue: %u\nlength: %u\ntype: %s\n",
input, test.value, test.length, xtr_utils_value_type_tostring(&test)
);
}
return 0;
}
Here is a link to a picture of xtr in action.
https://sphotos-b.xx.fbcdn.net/hphotos-ash3/c43.0.403.403/p403x403/61340_442444625817650_1768461240_n.png
*/
/* auto-generated binary include: "help.txt" encoded by bin2inc (sh)
resource : file:///home/triston/projects/bash-masters/application/xtr/help.txt
developer: triston
machine : AOD257
content-length: 1712
*/
unsigned char main_help[] = {
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};
unsigned long int main_help_length = 1712;
const char * XTR_DEFAULT_FORMAT = "%02hX";
const char XTR_TOKEN_ESCAPE = '\\';
const char XTR_SUBSTITUTION_IDENTIFIER = 's';
const char XTR_AFFIX_IDENTIFIER = 'a';
const char XTR_TOKEN_NEXT = '/';
const char XTR_OPTION_DETRACT = '-';
const char XTR_OPTION_ATTRACT = '+';
const char XTR_EXCLUSIVE_OPTION = 'e';
const char XTR_FORMAT_OPTION = 'f';
const char XTR_GLOBAL_PREFIX_OPTION = 'p';
const char XTR_GLOBAL_SUFFIX_OPTION = 's';
const char XTR_INCLUSIVE_OPTION = 'i';
const char XTR_RANGE_SPECIFIER_TOKEN = '[';
const char XTR_RANGE_TERMINATOR_TOKEN = ']';
const char XTR_RANGE_SEPARATOR_TOKEN = '-';
#define XTR_RANGE_MAX 256
#define XTR_TRUE 1
#define XTR_FALSE 0
const int XTR_RANGE_MAXIMUM_SEQUENCES = XTR_RANGE_MAX;
typedef enum XTR_VALUE_TYPE {
XTR_VALUE_INVALID,
XTR_VALUE_NULL,
XTR_VALUE_CHAR,
XTR_VALUE_HEX,
XTR_VALUE_OCTAL,
XTR_VALUE_INTEGER,
XTR_VALUE_PREDEFINED
} XTR_VALUE_TYPE;
const char * XTR_VALUE_TYPE_DESCRIPTION[] = {
"insufficient input", "string terminator", "character", "hexidecimal", "octal",
"integer", "control character class"
};
typedef struct XTR_VALUE {
unsigned int value;
unsigned int length;
unsigned int type;
} XTR_VALUE;
const char * xtr_utils_value_type_tostring(XTR_VALUE * val) {
if (val->type > XTR_VALUE_PREDEFINED) return NULL;
else return XTR_VALUE_TYPE_DESCRIPTION[val->type];
}
typedef struct XTR_RANGE_SEQUENCE {
int begin;
int end;
} XTR_RANGE_SEQUENCE;
typedef enum XTR_RANGE_ERROR {
XTR_RANGE_ERROR_MISSING_INPUT = 0x01,
XTR_RANGE_ERROR_MISSING_SPECIFIER_TOKEN,
XTR_RANGE_ERROR_MISSING_TERMINATOR_TOKEN,
XTR_RANGE_ERROR_MISSING_RANGE_SEPARATOR,
XTR_RANGE_ERROR_MISSING_PRIMARY_VALUE,
XTR_RANGE_ERROR_MISSING_SECONDARY_VALUE,
XTR_RANGE_ERROR_MAXIMUM_SEQUENCE_OVERFLOW
} XTR_RANGE_ERROR;
typedef enum XTR_LIST_ERROR {
XTR_LIST_NULL = 0x01,
XTR_LIST_EMPTY = 0x08,
} XTR_LIST_ERROR;
const char * XTR_LIST_ERROR_DESCRIPTION[] = {
"", "unable to scan null pointer", "expected token `['",
"unable to locate range terminator `]'", "expected range separator `-'",
"expected primary value", "expected secondary value",
"unable to allocate further sequence storage", "list content empty"
};
#define XTR_RANGE_ERROR_DESCRIPTION XTR_LIST_ERROR_DESCRIPTION
typedef struct XTR_RANGE {
unsigned long int length;
int count;
XTR_RANGE_SEQUENCE ** sequence;
XTR_RANGE_ERROR error;
} XTR_RANGE;
const char * xtr_utils_range_error_tostring(XTR_RANGE * range) {
if (range->error > XTR_RANGE_ERROR_MAXIMUM_SEQUENCE_OVERFLOW) return NULL;
else return XTR_RANGE_ERROR_DESCRIPTION[range->error];
}
void xtr_range_free(XTR_RANGE * range) {
int i; for(i = 0; i < range->count; i++) free(range->sequence[i]);
free(range->sequence); memset(range, 0, sizeof(XTR_RANGE));
}
typedef struct XTR_LIST {
int length; // length of list in bytes
int count; // NUMBER OF DEFINED ITEMS IN LIST
char * value; // list item status
int error;
int range; // ERRANT RANGE SEQUENCE IF ANY
} XTR_LIST;
XTR_LIST xtr_list_new() {
return (XTR_LIST) { 0, 0, calloc(XTR_RANGE_MAX, sizeof(char)), 0, 0 };
}
void xtr_list_free(XTR_LIST * list) {
free(list->value); memset(list, 0, sizeof(XTR_LIST));
};
const char * xtr_utils_list_error_tostring(XTR_LIST * val) {
if (val->error > XTR_LIST_EMPTY) return NULL;
else return XTR_LIST_ERROR_DESCRIPTION[val->error];
}
// PERFORMANCE PROFILE HINTS AT WHAT TRANSLATION FEATURES ARE ACTIVE in XTR_CONTEXT
typedef enum XTR_PERFORMANCE_PROFILE {
XTR_PERFORMANCE_STANDARD = 0x00, // fastest
XTR_PERFORMANCE_ENHANCED = 0X01, // enhancement takes time
XTR_PERFORMANCE_EXCLUSIVE = 0x02, // exclusivity requires filtering
XTR_PERFORMANCE_DIVERSE = 0x04 // diversity requires max processing
} XTR_PERFORMANCE_PROFILE;
typedef struct XTR_CONTEXT {
XTR_PERFORMANCE_PROFILE profile;
char exclude[XTR_RANGE_MAX];
char * substitute[XTR_RANGE_MAX];
char * prefix[XTR_RANGE_MAX];
char * suffix[XTR_RANGE_MAX];
char * format[XTR_RANGE_MAX];
char * default_prefix; // prefix used if none specified
char * default_suffix; // suffix used if none specified
char * default_format; // format used if none specified
char ** intern;
unsigned long int interns;
} XTR_CONTEXT;
XTR_CONTEXT * xtr_new_context(char * format) {
XTR_CONTEXT * xtrcx = calloc(1, sizeof(XTR_CONTEXT));
xtrcx->default_format = format;
}
xtr_context_free(XTR_CONTEXT * xtrcx) {
int index;
for (index = 0; index < xtrcx->interns; index++) free(xtrcx->intern[index]);
free(xtrcx->intern);
free(xtrcx);
}
// THIS IS FOR INTERNAL PROCESSING OF COMMANDS
int xtr_utils_sequence_match(register char *a, register char *b) {
if ( a == b ) return 1; if ( ! a || ! b ) return 0;
while ( *a != 0 && *b !=0 ) if (*a++ != *b++) return 0;
return 1;
}
char * xtr_utils_token_address(register char * haystack, register char needle) {
/*
can find null: true
can skip escapes: true
can find escapes: true
can die on null escapes: true
*/
if ( ! haystack ) return NULL;
while (1) {
if (*haystack == needle) return haystack;
else if (*haystack == XTR_TOKEN_ESCAPE) {
if ( ! haystack[1] ) break; // explicitly disallow null escape
haystack += 2 ; continue;
}
else if ( ! *(haystack++) ) break;
}
return NULL;
}
long int xtr_utils_delimited_length(register char * inquisition, unsigned long int max, char tokenDelimiter) {
char * token = xtr_utils_token_address(inquisition, tokenDelimiter);
if (token == NULL) return -1;
unsigned long int length = (token - inquisition);
if ( max && length >= max ) return -1;
else return length;
}
#define xtr_isctrlspace(target) target == '\t' || target == '\n' || target == '\r' || target == '\v' || target == '\f'
#define xtr_isoctdigit(target) (target >= '0' && target < '8')
XTR_VALUE xtr_utils_scan_value(register char * source) {
register unsigned long int index = 0;
XTR_VALUE scan = { 0, 0, 0 };
if ( ! source ) return scan;
if ( ! *source ) {
scan.length = 1;
scan.type = XTR_VALUE_NULL;
return scan;
}
// special case escape handling that would otherwise cause incorrect parsing
if (source[index] == XTR_TOKEN_ESCAPE) {
scan.value = source[index + 1]; scan.length = 2; // pre-emptive strike
if ( ! scan.value ) scan.type = XTR_VALUE_NULL; // no overflows
else if ( xtr_isctrlspace(scan.value) ) scan.type = XTR_VALUE_PREDEFINED; // no
else if ( scan.value == ' ' ) scan.type = XTR_VALUE_CHAR; // SPACE passovers
else if ( scan.value == '-' ) scan.type = XTR_VALUE_CHAR; // no negatives
if (scan.type) return scan;
else { scan.value = 0; scan.length = 0; } // roll back pre-emptive aggression
}
// \xHH
if (sscanf(source, "\\x%2x", &scan.value)) {
scan.type = XTR_VALUE_HEX;
index = 2;
while (isxdigit(source[index]) && (++index < 4));
scan.length = index;
if ( scan.length == 2 ) { // whitespace / null false positive
scan.type = XTR_VALUE_CHAR; scan.value = 'x';
}
return scan;
}
// \XHH
if (sscanf(source, "\\X%2x", &scan.value)) {
scan.type = XTR_VALUE_HEX;
index = 2;
while (isxdigit(source[index]) && (++index < 4));
scan.length = index;
if ( scan.length == 2 ) { // whitespace / null false positive
scan.type = XTR_VALUE_CHAR; scan.value = 'X';
}
return scan;
}
// \0-0377
if (sscanf(source, "\\0%3o", &scan.value)) {
scan.type = XTR_VALUE_OCTAL;
if (scan.value >= XTR_RANGE_MAX) { // over-step, truncate
// \0-037
sscanf(source, "\\0%2o", &scan.value);
scan.length = 4;
return scan;
}
index = 1;
while (xtr_isoctdigit(source[index]) && (++index < 5));
scan.length = index;
return scan;
}
// \1-255
if (sscanf(source, "\\%3u", &scan.value)) {
scan.type = XTR_VALUE_INTEGER;
if (scan.value >= XTR_RANGE_MAX) { // over-step, truncate
sscanf(source, "\\%2u", &scan.value);
scan.length = 3;
return scan;
}
index = 1;
while (isdigit(source[index]) && (++index < 4));
scan.length = index;
return scan;
}
if ( *source == XTR_TOKEN_ESCAPE) {
index++;
scan.value = source[index];
if ( ! source[index] ) { scan.type = XTR_VALUE_INVALID; return scan; }
else if ( source[index] == 'a' ) scan.value = (int) '\a';
else if ( source[index] == 'b' ) scan.value = (int) '\b';
else if ( source[index] == 'f' ) scan.value = (int) '\f';
else if ( source[index] == 'n' ) scan.value = (int) '\n';
else if ( source[index] == 'r' ) scan.value = (int) '\r';
else if ( source[index] == 't' ) scan.value = (int) '\t';
else if ( source[index] == 'v' ) scan.value = (int) '\v';
if (scan.value != source[index]) scan.type = XTR_VALUE_PREDEFINED;
else scan.type = XTR_VALUE_CHAR;
scan.length = (index + 1);
return scan;
}
scan.type = XTR_VALUE_CHAR;
scan.value = *source;
scan.length = 1;
return scan;
}
XTR_RANGE xtr_utils_scan_range(char * source) {
register XTR_RANGE range = { 0, 0, NULL, 0 };
register XTR_VALUE scan;
int lbracket = xtr_utils_delimited_length(source, 0, XTR_RANGE_SPECIFIER_TOKEN);
if (lbracket != 0) {
range.error = XTR_RANGE_ERROR_MISSING_SPECIFIER_TOKEN;
return range;
}
int rbracket = xtr_utils_delimited_length(source, 0, XTR_RANGE_TERMINATOR_TOKEN);
if (rbracket < 1) {
range.error = XTR_RANGE_ERROR_MISSING_TERMINATOR_TOKEN;
return range;
}
int index;
XTR_RANGE_SEQUENCE * sequence[XTR_RANGE_MAXIMUM_SEQUENCES];
for( index = 1; index < rbracket; range.count += 1) {
if (range.count == XTR_RANGE_MAXIMUM_SEQUENCES) {
range.error = XTR_RANGE_ERROR_MAXIMUM_SEQUENCE_OVERFLOW;
//range.count++; // don't increase this or overflow occurs @ memcpy
break;
}
if ( source[index] == XTR_RANGE_SEPARATOR_TOKEN ) {
range.error = XTR_RANGE_ERROR_MISSING_PRIMARY_VALUE;
range.count++;
break;
}
sequence[range.count] = malloc(sizeof(XTR_RANGE_SEQUENCE));
scan = xtr_utils_scan_value(source + index);
sequence[range.count]->begin = scan.value;
index += scan.length;
if ( source[index] != XTR_RANGE_SEPARATOR_TOKEN ) {
range.error = XTR_RANGE_ERROR_MISSING_RANGE_SEPARATOR;
range.count++;
break;
}
index++;
if ( index == rbracket ) {
range.error = XTR_RANGE_ERROR_MISSING_SECONDARY_VALUE;
range.count++;
break;
}
scan = xtr_utils_scan_value(source + index);
sequence[range.count]->end = scan.value;
index += scan.length;
}
if ( ! range.count ) {
range.error = XTR_RANGE_ERROR_MISSING_INPUT;
range.count++; // range has an implied count
}
else {
long sequence_length = (range.count * sizeof(XTR_RANGE_SEQUENCE *));
range.sequence = malloc(sequence_length);
memcpy(range.sequence, sequence, sequence_length);
range.length = index;
}
return range;
}
XTR_LIST xtr_utils_scan_list(char * source) {
XTR_LIST list = xtr_list_new();
XTR_RANGE range;
XTR_VALUE scan;
if ( ! source ) return list;
else if ( ! *source ) { list.error = XTR_LIST_EMPTY; return list; }
// we want a localized list.
long int length = xtr_utils_delimited_length(source, 0, XTR_TOKEN_NEXT), index;
if ( length == -1) length = strlen(source);
char local[length + 1];
local[length] = 0;
memcpy(local, source, length);
for (index = 0; index < length;) {
list.count++; // COUNT BEGINS AT 1 : NULL COUNT IS A GENERAL ERROR
if (local[index] == XTR_RANGE_SPECIFIER_TOKEN) {
range = xtr_utils_scan_range(local + index);
if ( ! range.error ) {
register int value, final, set;
for (set = 0; set < range.count; set++) {
if (range.sequence[set]->begin > range.sequence[set]->end) {
value = range.sequence[set]->end;
final = range.sequence[set]->begin;
} else {
value = range.sequence[set]->begin;
final = range.sequence[set]->end;
}
for (; value <= final; value++) list.value[value] = XTR_TRUE;
}
index += range.length;
} else {
list.error = range.error;
list.range = range.count;
xtr_range_free(&range);
break; // end list processing
}
xtr_range_free(&range);
continue;
}
scan = xtr_utils_scan_value(local + index);
list.value[scan.value] = XTR_TRUE;
index += scan.length;
continue;
}
if ( ! list.count ) {
list.error = XTR_LIST_EMPTY;
}
list.length = length;
return list;
}
char * xtr_context_intern(XTR_CONTEXT * xtrcx, char * source, char delimiter) {
if ( ! source ) return source; // allows NULL to be set in procedures who call this
unsigned long int existing;
if (xtrcx->interns) {
for (existing = 0; existing < xtrcx->interns; existing++) {
if (xtrcx->intern[existing] == source) return source;
else if (xtr_utils_sequence_match(xtrcx->intern[existing], source)) {
return xtrcx->intern[existing];
}
}
xtrcx->intern = realloc(xtrcx->intern, (sizeof(char *) * xtrcx->interns));
} else xtrcx->intern = realloc(xtrcx->intern, sizeof(char *));
unsigned long int length = xtr_utils_delimited_length(source, 0, delimiter);
if (length == -1) length = strlen(source);
register char * intern = memcpy(calloc(1, length + 1), source, length);
xtrcx->intern[xtrcx->interns++] = intern;
return intern;
}
void xtr_context_intern_range(XTR_CONTEXT * xtrcx, char ** target, XTR_RANGE * range, char * string, char delimiter) {
register int value, final, set;
string = xtr_context_intern(xtrcx, string, delimiter);
for (set = 0; set < range->count; set++) {
if (range->sequence[set]->begin > range->sequence[set]->end) {
value = range->sequence[set]->end;
final = range->sequence[set]->begin;
} else {
value = range->sequence[set]->begin;
final = range->sequence[set]->end;
}
for (; value <= final; value++) target[value] = string;
}
}
void xtr_context_intern_list(register XTR_CONTEXT * xtrcx, char ** target, XTR_LIST * list, char * string) {
if ( ! xtrcx || ! list ) return;
if (list->error) return;
string = xtr_context_intern(xtrcx, string, XTR_TOKEN_NEXT);
register int item1 = 0; register int item2 = 1;
for (; item2 < XTR_RANGE_MAX; item1+=2, item2+=2 ) {
if (list->value[item1]) target[item1] = string;
if (list->value[item2]) target[item2] = string;
}
}
void xtr_context_set_value_exclude(register XTR_CONTEXT * xtrcx, int status, int value) {
xtrcx->profile |= XTR_PERFORMANCE_EXCLUSIVE;
xtrcx->exclude[value] = status;
}
void xtr_context_set_range_exclude(register XTR_CONTEXT * xtrcx, XTR_RANGE * range, register int status) {
xtrcx->profile |= XTR_PERFORMANCE_EXCLUSIVE;
register int value, final, set;
for (set = 0; set < range->count; set++) {
if (range->sequence[set]->begin > range->sequence[set]->end) {
value = range->sequence[set]->end;
final = range->sequence[set]->begin;
} else {
value = range->sequence[set]->begin;
final = range->sequence[set]->end;
}
for (; value <= final; value++) xtrcx->exclude[value] = status;
}
}
void xtr_context_set_list_exclude(register XTR_CONTEXT * xtrcx, XTR_LIST * list, int value) {
if ( ! xtrcx || ! list ) return;
if ( list->error ) return;
xtrcx->profile |= XTR_PERFORMANCE_EXCLUSIVE;
register int item1 = 0; register int item2 = 1;
for (; item2 < XTR_RANGE_MAX; item1+=2, item2+=2 ) {
if (list->value[item1]) xtrcx->exclude[item1] = value;
if (list->value[item2]) xtrcx->exclude[item2] = value;
}
}
void xtr_context_set_substitution(register XTR_CONTEXT * xtrcx, char * substitute, int value) {
xtrcx->profile |= XTR_PERFORMANCE_DIVERSE;
xtrcx->substitute[value] = xtr_context_intern(xtrcx,
substitute, XTR_TOKEN_NEXT
);
}
void xtr_context_set_range_substitution(register XTR_CONTEXT * xtrcx, XTR_RANGE * range, char * substitute) {
xtrcx->profile |= XTR_PERFORMANCE_DIVERSE;
xtr_context_intern_range(xtrcx,
xtrcx->substitute, range, substitute, XTR_TOKEN_NEXT
);
}
void xtr_context_set_list_substitution(register XTR_CONTEXT * xtrcx, XTR_LIST * list , char * substitute) {
xtrcx->profile |= XTR_PERFORMANCE_DIVERSE;
xtr_context_intern_list(xtrcx, xtrcx->substitute, list, substitute);
}
void xtr_context_set_prefix(register XTR_CONTEXT * xtrcx, int value, char * prefix) {
xtrcx->profile |= XTR_PERFORMANCE_ENHANCED;
xtrcx->prefix[value] = xtr_context_intern(xtrcx,
prefix, 0
);
}
void xtr_context_set_range_prefix(register XTR_CONTEXT * xtrcx, XTR_RANGE * range, register char * prefix) {
xtrcx->profile |= XTR_PERFORMANCE_ENHANCED;
xtr_context_intern_range(xtrcx,
xtrcx->prefix, range, prefix, 0
);
}
void xtr_context_set_list_prefix(register XTR_CONTEXT * xtrcx, XTR_LIST * list , char * prefix) {
xtrcx->profile |= XTR_PERFORMANCE_DIVERSE;
xtr_context_intern_list(xtrcx, xtrcx->prefix, list, prefix);
}
void xtr_context_set_suffix(register XTR_CONTEXT * xtrcx, int value, char * suffix) {
xtrcx->profile |= XTR_PERFORMANCE_ENHANCED;
xtrcx->suffix[value] = xtr_context_intern(xtrcx,
suffix, 0
);
}
void xtr_context_set_range_suffix(register XTR_CONTEXT * xtrcx, XTR_RANGE * range, register char * suffix) {
xtrcx->profile |= XTR_PERFORMANCE_ENHANCED;
xtr_context_intern_range(xtrcx,
xtrcx->suffix, range, suffix, 0
);
}
void xtr_context_set_list_suffix(register XTR_CONTEXT * xtrcx, XTR_LIST * list , char * suffix) {
xtrcx->profile |= XTR_PERFORMANCE_DIVERSE;
xtr_context_intern_list(xtrcx, xtrcx->suffix, list, suffix);
}
void xtr_context_set_format(register XTR_CONTEXT * xtrcx, int value, char * format) {
xtrcx->profile |= XTR_PERFORMANCE_ENHANCED;
xtrcx->format[value] = xtr_context_intern(xtrcx,
format, 0
);
}
void xtr_context_set_range_format(register XTR_CONTEXT * xtrcx, XTR_RANGE * range, register char * format) {
xtrcx->profile |= XTR_PERFORMANCE_ENHANCED;
xtr_context_intern_range(xtrcx,
xtrcx->format, range, format, 0
);
}
void xtr_context_set_list_format(register XTR_CONTEXT * xtrcx, XTR_LIST * list , char * format) {
xtrcx->profile |= XTR_PERFORMANCE_DIVERSE;
xtr_context_intern_list(xtrcx, xtrcx->format, list, format);
}
int xtr_print_value_prefix(XTR_CONTEXT * xtrcx, FILE * out, int value) {
if (xtrcx->prefix[value]) return fprintf(out, "%s", xtrcx->prefix[value]);
else if (xtrcx->default_prefix) return fprintf(out, "%s", xtrcx->default_prefix);
else return 0;
}
int xtr_print_value_suffix(XTR_CONTEXT * xtrcx, FILE * out, int value) {
if (xtrcx->suffix[value]) return fprintf(out, "%s", xtrcx->suffix[value]);
else if (xtrcx->default_suffix) return fprintf(out, "%s", xtrcx->default_suffix);
else return 0;
}
int xtr_print_value_format(XTR_CONTEXT * xtrcx, FILE * out, int value) {
if (xtrcx->format[value]) return fprintf(out, xtrcx->format[value], value);
else if (xtrcx->default_format) return fprintf(out, xtrcx->default_format, value);
else return 0;
}
// NOTHING FANCY HERE
int xtr_print_value(XTR_CONTEXT * xtrcx, FILE * out, int value) {
return fprintf(out, xtrcx->default_format, value);
}
// GETTING FANCY HERE, POSSIBLE PREFIX, SUFFIX, AND FORMAT
int xtr_print_enhanced_value(XTR_CONTEXT * xtrcx, FILE * out, int value) {
register int p = 0, v = 0, s = 0;
p = xtr_print_value_prefix(xtrcx, out, value);
v = fprintf(out, xtrcx->default_format, value);
s = xtr_print_value_suffix(xtrcx, out, value);
return (p + v + s);
}
int xtr_print_exclusive_value(XTR_CONTEXT * xtrcx, FILE * out, int value) {
register int p = 0, v = 0, s = 0;
if (xtrcx->exclude[value]) return fprintf(out, "%c", value);
p = xtr_print_value_prefix(xtrcx, out, value);
v = xtr_print_value_format(xtrcx, out, value);
s = xtr_print_value_suffix(xtrcx, out, value);
return (p + v + s);
}
int xtr_print_diverse_value(XTR_CONTEXT * xtrcx, FILE * out, int value) {
register int p = 0, v = 0, s = 0;
if (xtrcx->substitute[value])
return fprintf(out, "%s", xtrcx->substitute[value]);
if (xtrcx->exclude[value]) return fprintf(out, "%c", value);
p = xtr_print_value_prefix(xtrcx, out, value);
v = xtr_print_value_format(xtrcx, out, value);
s = xtr_print_value_suffix(xtrcx, out, value);
return (p + v + s);
}
#define xtr_affirmative(n) (n > -1)
XTR_LIST xtr_verify_list_fatal(int argument, XTR_LIST list) {
if (list.error) {
if (list.error < 8) {
fprintf(stderr,
"error in argument %u: list item %u: range sequence %u: %s\n",
argument, list.count, list.range,
xtr_utils_list_error_tostring(&list)
);
} else {
fprintf(stderr,
"error in argument %u: %s\n",
argument, xtr_utils_list_error_tostring(&list)
);
}
exit(argument);
}
return list;
}
XTR_RANGE xtr_verify_range_fatal(int argument, XTR_RANGE range) {
if (range.error) {
fprintf(stderr,
"error in argument %u: range sequence %u: %s\n",
argument, range.count, xtr_utils_range_error_tostring(&range)
);
exit(argument);
}
return range;
}
void xtr_affix(XTR_CONTEXT * cx, int argument, char * option) {
long int lp = 0, ls = 0;
char *p = NULL, *s = NULL;
XTR_LIST list = xtr_verify_list_fatal(argument, xtr_utils_scan_list(option));
option += list.length;
if (! *option++ == XTR_TOKEN_NEXT ) {
fprintf(stderr, "error in argument %u: missing list terminator `/'\n", argument);
exit(argument);
}
p = option;
if ( ! *p ) {
xtr_context_set_list_prefix(cx, &list, NULL);
xtr_context_set_list_suffix(cx, &list, NULL);
return;
}
if (xtr_utils_sequence_match(p, "//")) /* NOP */ return;
lp = xtr_utils_delimited_length(p, 0, XTR_TOKEN_NEXT);
if (lp < 0) {
xtr_context_set_list_prefix(cx, &list, p);
xtr_context_set_list_suffix(cx, &list, p);
return;
}
s = (option + lp + 1);
if (*s) {
ls = xtr_utils_delimited_length(s, 0, XTR_TOKEN_NEXT);
if (ls < 0) ls = xtr_utils_delimited_length(s, 0, 0);
} else {
xtr_context_set_list_prefix(cx, &list, p);
xtr_context_set_list_suffix(cx, &list, p);
return;
}
if (lp) {
xtr_context_set_list_prefix(cx, &list, p);