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Diffstat (limited to 'misc/openlayers/tools/jsmin.c')
| -rw-r--r-- | misc/openlayers/tools/jsmin.c | 272 |
1 files changed, 0 insertions, 272 deletions
diff --git a/misc/openlayers/tools/jsmin.c b/misc/openlayers/tools/jsmin.c deleted file mode 100644 index 86d53da..0000000 --- a/misc/openlayers/tools/jsmin.c +++ /dev/null @@ -1,272 +0,0 @@ -/* jsmin.c - 2006-05-04 - -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; - - -/* 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: - putc(theA, stdout); - case 2: - theA = theB; - if (theA == '\'' || theA == '"') { - for (;;) { - putc(theA, stdout); - theA = get(); - if (theA == theB) { - break; - } - if (theA <= '\n') { - fprintf(stderr, -"Error: JSMIN unterminated string literal: %c\n", theA); - exit(1); - } - if (theA == '\\') { - putc(theA, stdout); - theA = get(); - } - } - } - case 3: - theB = next(); - if (theB == '/' && (theA == '(' || theA == ',' || theA == '=' || - theA == ':' || theA == '[' || theA == '!' || theA == '&' || - theA == '|')) { - putc(theA, stdout); - putc(theB, stdout); - for (;;) { - theA = get(); - if (theA == '/') { - break; - } else if (theA =='\\') { - putc(theA, stdout); - theA = get(); - } else if (theA <= '\n') { - fprintf(stderr, -"Error: JSMIN unterminated Regular Expression literal.\n", theA); - exit(1); - } - putc(theA, stdout); - } - 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() -{ - 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 '\'': - 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. -*/ -extern int -main(int argc, char* argv[]) -{ - int i; - for (i = 1; i < argc; i += 1) { - fprintf(stdout, "// %s\n", argv[i]); - } - jsmin(); - return 0; -} |