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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 8456 | maxcodehac | 1 | /* Pretty-print input source by emitting parse tree back as syntax. |
| 2 | * with no flags: pretty-printed source |
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| 3 | * with -m: minified source with line breaks |
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| 4 | * with -mm: minified source without line breaks |
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| 5 | * with -s: s-expression syntax tree |
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| 6 | */ |
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| 7 | |||
| 8 | #include |
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| 9 | |||
| 10 | #include "jsi.h" |
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| 11 | #include "jsparse.h" |
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| 12 | |||
| 13 | static void js_ppstring(js_State *J, const char *filename, const char *source, int minify) |
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| 14 | { |
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| 15 | js_Ast *P; |
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| 16 | if (js_try(J)) { |
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| 17 | jsP_freeparse(J); |
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| 18 | js_throw(J); |
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| 19 | } |
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| 20 | P = jsP_parse(J, filename, source); |
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| 21 | if (minify > 2) |
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| 22 | jsP_dumplist(J, P); |
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| 23 | else |
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| 24 | jsP_dumpsyntax(J, P, minify); |
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| 25 | jsP_freeparse(J); |
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| 26 | js_endtry(J); |
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| 27 | } |
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| 28 | |||
| 29 | void js_ppfile(js_State *J, const char *filename, int minify) |
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| 30 | { |
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| 31 | FILE *f; |
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| 32 | char *s; |
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| 33 | int n, t; |
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| 34 | |||
| 35 | f = fopen(filename, "rb"); |
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| 36 | if (!f) { |
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| 37 | js_error(J, "cannot open file: '%s'", filename); |
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| 38 | } |
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| 39 | |||
| 40 | if (fseek(f, 0, SEEK_END) < 0) { |
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| 41 | fclose(f); |
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| 42 | js_error(J, "cannot seek in file: '%s'", filename); |
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| 43 | } |
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| 44 | |||
| 45 | n = ftell(f); |
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| 46 | if (n < 0) { |
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| 47 | fclose(f); |
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| 48 | js_error(J, "cannot tell in file: '%s'", filename); |
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| 49 | } |
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| 50 | |||
| 51 | if (fseek(f, 0, SEEK_SET) < 0) { |
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| 52 | fclose(f); |
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| 53 | js_error(J, "cannot seek in file: '%s'", filename); |
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| 54 | } |
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| 55 | |||
| 56 | s = js_malloc(J, n + 1); /* add space for string terminator */ |
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| 57 | if (!s) { |
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| 58 | fclose(f); |
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| 59 | js_error(J, "cannot allocate storage for file contents: '%s'", filename); |
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| 60 | } |
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| 61 | |||
| 62 | t = fread(s, 1, (size_t)n, f); |
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| 63 | if (t != n) { |
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| 64 | js_free(J, s); |
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| 65 | fclose(f); |
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| 66 | js_error(J, "cannot read data from file: '%s'", filename); |
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| 67 | } |
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| 68 | |||
| 69 | s[n] = 0; /* zero-terminate string containing file data */ |
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| 70 | |||
| 71 | if (js_try(J)) { |
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| 72 | js_free(J, s); |
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| 73 | fclose(f); |
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| 74 | js_throw(J); |
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| 75 | } |
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| 76 | |||
| 77 | js_ppstring(J, filename, s, minify); |
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| 78 | |||
| 79 | js_free(J, s); |
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| 80 | fclose(f); |
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| 81 | js_endtry(J); |
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| 82 | } |
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| 83 | |||
| 84 | int |
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| 85 | main(int argc, char **argv) |
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| 86 | { |
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| 87 | js_State *J; |
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| 88 | int minify = 0; |
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| 89 | int i; |
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| 90 | |||
| 91 | J = js_newstate(NULL, NULL, 0); |
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| 92 | |||
| 93 | for (i = 1; i < argc; ++i) { |
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| 94 | if (!strcmp(argv[i], "-m")) |
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| 95 | minify = 1; |
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| 96 | else if (!strcmp(argv[i], "-mm")) |
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| 97 | minify = 2; |
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| 98 | else if (!strcmp(argv[i], "-s")) |
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| 99 | minify = 3; |
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| 100 | else { |
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| 101 | if (js_try(J)) { |
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| 102 | js_report(J, js_trystring(J, -1, "Error")); |
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| 103 | js_pop(J, 1); |
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| 104 | continue; |
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| 105 | } |
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| 106 | js_ppfile(J, argv[i], minify); |
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| 107 | js_endtry(J); |
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| 108 | } |
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| 109 | } |
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| 110 | |||
| 111 | js_gc(J, 0); |
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| 112 | js_freestate(J); |
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| 113 | |||
| 114 | return 0; |
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| 115 | } |