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less chaotic string literals

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This commit is contained in:
anon 2023-08-24 17:21:21 +02:00
parent a7d0792a3c
commit d9acf97269
1 changed files with 75 additions and 11 deletions
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86
source/regex.c
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@ -53,7 +53,7 @@ typedef struct {
// ### Regex creation/destruction ### // ### Regex creation/destruction ###
// ---------------------------------- // ----------------------------------
static int escape_1_to_1(const char c, char * whitelist) { static int escape_1_to_1(const char c, char * whitelist) {
switch(c) { switch (c) {
case 't': { case 't': {
strcat(whitelist, "\t"); strcat(whitelist, "\t");
} return 1; } return 1;
@ -95,22 +95,50 @@ static int escape_1_to_1(const char c, char * whitelist) {
static int escape_1_to_N(const char c, char * whitelist) { static int escape_1_to_N(const char c, char * whitelist) {
switch(c) { switch(c) {
case 'i': { case 'i': {
const char identifier_chars[] = "@0123456789_\300\301\302\303\304\305\306\307\310\311\312\313\314\315\316\317\320\321\322\323\324\325\326\327\330\331\332\333\334\335\336\337"; const char identifier_chars[] = "@0123456789_"
"\300\301\302\303\304"
"\305\306\307\310\311"
"\312\313\314\315\316"
"\317\320\321\322\323"
"\324\325\326\327\330"
"\331\332\333\334\335"
"\336\337";
strcpy(whitelist, identifier_chars); strcpy(whitelist, identifier_chars);
return sizeof(identifier_chars)-1; return sizeof(identifier_chars)-1;
}; };
case 'I': { case 'I': {
const char identifier_chars[] = "@_\300\301\302\303\304\305\306\307\310\311\312\313\314\315\316\317\320\321\322\323\324\325\326\327\330\331\332\333\334\335\336\337"; const char identifier_chars[] = "@_"
"\300\301\302\303\304"
"\305\306\307\310\311"
"\312\313\314\315\316"
"\317\320\321\322\323"
"\324\325\326\327\330"
"\331\332\333\334\335"
"\336\337";
strcpy(whitelist, identifier_chars); strcpy(whitelist, identifier_chars);
return sizeof(identifier_chars)-1; return sizeof(identifier_chars)-1;
}; };
case 'k': { case 'k': {
const char keyword_chars[] = "@0123456789_\300\301\302\303\304\305\306\307\310\311\312\313\314\315\316\317\320\321\322\323\324\325\326\327\330\331\332\333\334\335\336\337"; const char keyword_chars[] = "@0123456789_"
"\300\301\302\303\304"
"\305\306\307\310\311"
"\312\313\314\315\316"
"\317\320\321\322\323"
"\324\325\326\327\330"
"\331\332\333\334\335"
"\336\337";
strcpy(whitelist, keyword_chars); strcpy(whitelist, keyword_chars);
return sizeof(keyword_chars)-1; return sizeof(keyword_chars)-1;
}; };
case 'K': { case 'K': {
const char keyword_chars[] = "@_\300\301\302\303\304\305\306\307\310\311\312\313\314\315\316\317\320\321\322\323\324\325\326\327\330\331\332\333\334\335\336\337"; const char keyword_chars[] = "@_"
"\300\301\302\303\304"
"\305\306\307\310\311"
"\312\313\314\315\316"
"\317\320\321\322\323"
"\324\325\326\327\330"
"\331\332\333\334\335"
"\336\337";
strcpy(whitelist, keyword_chars); strcpy(whitelist, keyword_chars);
return sizeof(keyword_chars)-1; return sizeof(keyword_chars)-1;
}; };
@ -125,12 +153,40 @@ static int escape_1_to_N(const char c, char * whitelist) {
return sizeof(filename_chars)-1; return sizeof(filename_chars)-1;
}; };
case 'p': { case 'p': {
const char printable_chars[] = "@\241\242\243\244\245\246\247\250\251\252\253\254\255\256\257\260\261\262\263\264\265\266\267\270\271\272\273\274\275\276\277\300\301\302\303\304\305\306\307\310\311\312\313\314\315\316\317\320\321\322\323\324\325\326\327\330\331\332\333\334\335\336\337"; const char printable_chars[] = "@"
"\241\242\243\244\245"
"\246\247\250\251\252"
"\253\254\255\256\257"
"\260\261\262\263\264"
"\265\266\267\270\271"
"\272\273\274\275\276"
"\277"
"\300\301\302\303\304"
"\305\306\307\310\311"
"\312\313\314\315\316"
"\317\320\321\322\323"
"\324\325\326\327\330"
"\331\332\333\334\335"
"\336\337";
strcpy(whitelist, printable_chars); strcpy(whitelist, printable_chars);
return sizeof(printable_chars)-1; return sizeof(printable_chars)-1;
}; };
case 'P': { case 'P': {
const char printable_chars[] = "@\241\242\243\244\245\246\247\250\251\252\253\254\255\256\257\260\261\262\263\264\265\266\267\270\271\272\273\274\275\276\277\300\301\302\303\304\305\306\307\310\311\312\313\314\315\316\317\320\321\322\323\324\325\326\327\330\331\332\333\334\335\336\337"; const char printable_chars[] = "@"
"\241\242\243\244\245"
"\246\247\250\251\252"
"\253\254\255\256\257"
"\260\261\262\263\264"
"\265\266\267\270\271"
"\272\273\274\275\276"
"\277"
"\300\301\302\303\304"
"\305\306\307\310\311"
"\312\313\314\315\316"
"\317\320\321\322\323"
"\324\325\326\327\330"
"\331\332\333\334\335"
"\336\337";
strcpy(whitelist, printable_chars); strcpy(whitelist, printable_chars);
return sizeof(printable_chars)-1; return sizeof(printable_chars)-1;
}; };
@ -145,7 +201,9 @@ static int escape_1_to_N(const char c, char * whitelist) {
return sizeof(digit_chars)-1; return sizeof(digit_chars)-1;
}; };
case 'x': { case 'x': {
const char hex_chars[] = "0123456789abcdefABCDEF"; const char hex_chars[] = "0123456789"
"abcdef"
"ABCDEF";
strcpy(whitelist, hex_chars); strcpy(whitelist, hex_chars);
return sizeof(hex_chars)-1; return sizeof(hex_chars)-1;
}; };
@ -155,17 +213,23 @@ static int escape_1_to_N(const char c, char * whitelist) {
return sizeof(oct_chars)-1; return sizeof(oct_chars)-1;
}; };
case 'w': { case 'w': {
const char word_chars[] = "0123456789abcdefghijklmnopqrstuwxyzABCDEFGHIJKLMNOPQRSTUWXYZ_"; const char word_chars[] = "0123456789"
"abcdefghijklmnopqrstuwxyz"
"ABCDEFGHIJKLMNOPQRSTUWXYZ"
"_";
strcpy(whitelist, word_chars); strcpy(whitelist, word_chars);
return sizeof(word_chars)-1; return sizeof(word_chars)-1;
}; };
case 'h': { case 'h': {
const char very_word_chars[] = "abcdefghijklmnopqrstuwxyzABCDEFGHIJKLMNOPQRSTUWXYZ_"; const char very_word_chars[] = "abcdefghijklmnopqrstuwxyz"
"ABCDEFGHIJKLMNOPQRSTUWXYZ"
"_";
strcpy(whitelist, very_word_chars); strcpy(whitelist, very_word_chars);
return sizeof(very_word_chars)-1; return sizeof(very_word_chars)-1;
}; };
case 'a': { case 'a': {
const char alpha_chars[] = "abcdefghijklmnopqrstuwxyzABCDEFGHIJKLMNOPQRSTUWXYZ"; const char alpha_chars[] = "abcdefghijklmnopqrstuwxyz"
"ABCDEFGHIJKLMNOPQRSTUWXYZ";
strcpy(whitelist, alpha_chars); strcpy(whitelist, alpha_chars);
return sizeof(alpha_chars)-1; return sizeof(alpha_chars)-1;
}; };