diff options
| author | yo mama <pepper@scannerjammer.com> | 2015-04-04 01:00:59 -0700 |
|---|---|---|
| committer | yo mama <pepper@scannerjammer.com> | 2015-04-04 01:00:59 -0700 |
| commit | c7c22e3db1c826bcfb2bc66651ec480aae0d4ae0 (patch) | |
| tree | 8546df448afef40d3814d2581f4dacff7cebb87f /node_modules/webworker-threads/deps/minifier/src/minify.c | |
Diffstat (limited to 'node_modules/webworker-threads/deps/minifier/src/minify.c')
| -rw-r--r-- | node_modules/webworker-threads/deps/minifier/src/minify.c | 432 |
1 files changed, 432 insertions, 0 deletions
diff --git a/node_modules/webworker-threads/deps/minifier/src/minify.c b/node_modules/webworker-threads/deps/minifier/src/minify.c new file mode 100644 index 0000000..37fe385 --- /dev/null +++ b/node_modules/webworker-threads/deps/minifier/src/minify.c @@ -0,0 +1,432 @@ +/* + +2012-02-20 minify.c basado en jsmin.c, Jorge Chamorro Bieling, Proyectos Equis Ka, s.l. + +Minifica un .js, y lo convierte en una sentencia de C que fabrica una +string de C debidamente acabada en \0, con el nombre que se haya pasado en arg[1], +lista para ser guardada en un fichero del que se puede hacer un #include "fichero". + + +*/ + +/* jsmin.c +2012-01-09 + +Copyright (c) 2002 Douglas Crockford (www.crockford.com) + +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies +of the Software, and to permit persons to whom the Software is furnished to do +so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +The Software shall be used for Good, not Evil. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +*/ + +#include <stdlib.h> +#include <stdio.h> + +static int theA; +static int theB; +static int theLookahead = EOF; +static const char* hex= "0123456789abcdef"; + +/* + +static int len; +static int first; +#define maxLen 80 + +static void put_hex (int c) { + int lo= c & 0x000f; + int hi= (c & 0x00f0) >> 4; + + if (first) { + first= 0; + fprintf(stdout, " 0x%c%c", hex[hi], hex[lo]); + len+= 6; + } + else { + len+= 6; + if (len > maxLen) { + len= 6; + fprintf(stdout, ",\n 0x%c%c", hex[hi], hex[lo]); + } + else { + fprintf(stdout, ", 0x%c%c", hex[hi], hex[lo]); + } + } +} +*/ + +/* +static void put_hex (int c) { + if (c < ' ') { + if (c == '\n') { + fprintf(stdout, "\\n"); + } + else if (c == '\t') { + fprintf(stdout, "\\t"); + } + else if (c == '\r') { + fprintf(stdout, "\\r"); + } + else { + int lo= c & 0x000f; + int hi= (c & 0x00f0) >> 4; + + fprintf(stdout, "\\x%c%c", hex[hi], hex[lo]); + } + } + else if ((c == '\\') || (c == '"')) { + fprintf(stdout, "\\%c", c); + } + else { + putc(c, stdout); + } +} +*/ + +/* + +static void put_hex (int c) { + int lo, hi; + + if (c == '\n') { + fprintf(stdout, "\\n"); + lastCharWasHex= 0; + return; + } + + if (c == '\r') { + fprintf(stdout, "\\r"); + lastCharWasHex= 0; + return; + } + + if (c == '\t') { + fprintf(stdout, "\\t"); + lastCharWasHex= 0; + return; + } + + if ( (c == '"') || (c == '\\') || (c < 32) || (c > 126) ) { + goto printHex; + } + + if (lastCharWasHex && ( (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F') || (c >= '0' && c <= '9') )) { + goto printHex; + } + + putc(c, stdout); + lastCharWasHex= 0; + goto quit; + + printHex: + lo= c & 0x000f; + hi= (c & 0x00f0) >> 4; + fprintf(stdout, "\\x%c%c", hex[hi], hex[lo]); + lastCharWasHex= 1; + + quit: + return; +} +*/ + + +static void put_hex (int c) { + if (c == '\n') { + fputs("\\n", stdout); + } + else if (c == '\r') { + fputs("\\r", stdout); + } + else if (c == '\t') { + fputs("\\t", stdout); + } + else if (c == ' ') { + putc(c, stdout); + } + else { + int lo= c & 0x000f; + int hi= (c & 0x00f0) >> 4; + fprintf(stdout, "\\x%c%c", hex[hi], hex[lo]); + } +} + + +/* isAlphanum -- return true if the character is a letter, digit, underscore, +dollar sign, or non-ASCII character. +*/ +static int isAlphanum (int c) { + return ((c >= 'a' && c <= 'z') || (c >= '0' && c <= '9') || + (c >= 'A' && c <= 'Z') || c == '_' || c == '$' || c == '\\' || + c > 126); +} + + +/* get -- return the next character from stdin. Watch out for lookahead. If +the character is a control character, translate it to a space or +linefeed. +*/ + +static int get() { + int c = theLookahead; + theLookahead = EOF; + if (c == EOF) { + c = getc(stdin); + } + if (c >= ' ' || c == '\n' || c == EOF) { + return c; + } + if (c == '\r') { + return '\n'; + } + return ' '; +} + + +/* peek -- get the next character without getting it. +*/ + +static int peek () { + theLookahead = get(); + return theLookahead; +} + + +/* next -- get the next character, excluding comments. peek() is used to see +if a '/' is followed by a '/' or '*'. +*/ + +static int next () { + int c = get(); + if (c == '/') { + switch (peek()) { + case '/': + for (;;) { + c = get(); + if (c <= '\n') { + return c; + } + } + case '*': + get(); + for (;;) { + switch (get()) { + case '*': + if (peek() == '/') { + get(); + return ' '; + } + break; + case EOF: + fprintf(stderr, "Error: JSMIN Unterminated comment.\n"); + exit(1); + } + } + default: + return c; + } + } + return c; +} + + +/* action -- do something! What you do is determined by the argument: +1 Output A. Copy B to A. Get the next B. +2 Copy B to A. Get the next B. (Delete A). +3 Get the next B. (Delete B). +action treats a string as a single character. Wow! +action recognizes a regular expression if it is preceded by ( or , or =. +*/ + +static void action (int d) { + switch (d) { + case 1: + put_hex(theA); + case 2: + theA = theB; + if (theA == '\'' || theA == '"' || theA == '`') { + for (;;) { + put_hex(theA); + theA = get(); + if (theA == theB) { + break; + } + if (theA == '\\') { + put_hex(theA); + theA = get(); + } + if (theA == EOF) { + fprintf(stderr, "Error: JSMIN unterminated string literal."); + exit(1); + } + } + } + case 3: + theB = next(); + if (theB == '/' && (theA == '(' || theA == ',' || theA == '=' || + theA == ':' || theA == '[' || theA == '!' || + theA == '&' || theA == '|' || theA == '?' || + theA == '{' || theA == '}' || theA == ';' || + theA == '\n')) { + put_hex(theA); + put_hex(theB); + for (;;) { + theA = get(); + if (theA == '[') { + for (;;) { + put_hex(theA); + theA = get(); + if (theA == ']') { + break; + } + if (theA == '\\') { + put_hex(theA); + theA = get(); + } + if (theA == EOF) { + fprintf(stderr, + "Error: JSMIN unterminated set in Regular Expression literal.\n"); + exit(1); + } + } + } else if (theA == '/') { + break; + } else if (theA =='\\') { + put_hex(theA); + theA = get(); + } + if (theA == EOF) { + fprintf(stderr, + "Error: JSMIN unterminated Regular Expression literal.\n"); + exit(1); + } + put_hex(theA); + } + theB = next(); + } + } + } + + +/* jsmin -- Copy the input to the output, deleting the characters which are +insignificant to JavaScript. Comments will be removed. Tabs will be +replaced with spaces. Carriage returns will be replaced with linefeeds. +Most spaces and linefeeds will be removed. +*/ + +static void jsmin() { + if (peek() == 0xEF) { + get(); + get(); + get(); + } + theA = '\n'; + action(3); + while (theA != EOF) { + switch (theA) { + case ' ': + if (isAlphanum(theB)) { + action(1); + } else { + action(2); + } + break; + case '\n': + switch (theB) { + case '{': + case '[': + case '(': + case '+': + case '-': + action(1); + break; + case ' ': + action(3); + break; + default: + if (isAlphanum(theB)) { + action(1); + } else { + action(2); + } + } + break; + default: + switch (theB) { + case ' ': + if (isAlphanum(theA)) { + action(1); + break; + } + action(3); + break; + case '\n': + switch (theA) { + case '}': + case ']': + case ')': + case '+': + case '-': + case '"': + case '\'': + case '`': + action(1); + break; + default: + if (isAlphanum(theA)) { + action(1); + } else { + action(3); + } + } + break; + default: + action(1); + break; + } + } + } +} + + +/* main -- Output any command line arguments as comments +and then minify the input. +*/ +int main (int argc, char* argv[]) { + if (argv[1] == NULL) exit(1); + fprintf(stdout, "static const char* %s= \"", argv[1]); + /* + len= 0; + first= 1; + */ + if (argv[2] == NULL) { + putchar('('); + jsmin(); + puts(")\";"); + } + else if (argv[3] == NULL) { + putchar('('); + jsmin(); + puts(")()\";"); + } + else { + jsmin(); + puts("\";"); + } + return 0; +} |
