ceph/src/civetweb/src/third_party/duktape-1.5.2/examples/guide/processlines.c

   1 /* processlines.c */
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include <string.h>
   5 #include "duktape.h"
   6
   7 int main(int argc, const char *argv[]) {
   8     duk_context *ctx = NULL;
   9     char line[4096];
  10     char idx;
  11     int ch;
  12
  13     ctx = duk_create_heap_default();
  14     if (!ctx) {
  15         printf("Failed to create a Duktape heap.\n");
  16         exit(1);
  17     }
  18
  19     if (duk_peval_file(ctx, "process.js") != 0) {
  20         printf("Error: %s\n", duk_safe_to_string(ctx, -1));
  21         goto finished;
  22     }
  23     duk_pop(ctx);  /* ignore result */
  24
  25     memset(line, 0, sizeof(line));
  26     idx = 0;
  27     for (;;) {
  28         if (idx >= sizeof(line)) {
  29             printf("Line too long\n");
  30             exit(1);
  31         }
  32
  33         ch = fgetc(stdin);
  34         if (ch == 0x0a) {
  35             line[idx++] = '\0';
  36
  37             duk_push_global_object(ctx);
  38             duk_get_prop_string(ctx, -1 /*index*/, "processLine");
  39             duk_push_string(ctx, line);
  40             if (duk_pcall(ctx, 1 /*nargs*/) != 0) {
  41                 printf("Error: %s\n", duk_safe_to_string(ctx, -1));
  42             } else {
  43                 printf("%s\n", duk_safe_to_string(ctx, -1));
  44             }
  45             duk_pop(ctx);  /* pop result/error */
  46
  47             idx = 0;
  48         } else if (ch == EOF) {
  49             break;
  50         } else {
  51             line[idx++] = (char) ch;
  52         }
  53     }
  54
  55  finished:
  56     duk_destroy_heap(ctx);
  57
  58     exit(0);
  59 }