Small replacement for sed

src/util/cut.c

@@ -0,0 +1,57 @@
+#include <stdio.h>
+#include <string.h>
+
+void
+sed_emulator(int narg, char **patterns)
+{
+  char buffer[1024];
+  char buffer2[1024];
+  size_t i, lengths[1024];
+  char *b1 = buffer, *b2 = buffer2;
+
+  for (i = 0; i < narg; i++)
+    lengths[i] = strlen(patterns[i]);
+
+  while(1) {
+    if (gets(b1) == 0)
+      exit(0);
+    for (i = 0; i < narg; i+=2) {
+      char *b3, *b4;
+      while ((b3 = strstr(b1, patterns[i]))) {
+	b3[0] = 0;
+	strcpy(b2, b1);
+	strcat(b2, patterns[i+1]);
+	strcat(b2, b3 + lengths[i]);
+	b4 = b2; b2 = b1; b1 = b4;
+      }
+    }
+    puts(b1);
+  }
+}
+
+int
+main(int narg, char **argv) {
+  char buffer[1024];
+
+  narg--;
+  argv++;
+
+   if (narg >= 2)
+    sed_emulator(narg, argv);
+
+  while(1) {
+    if (gets(buffer) == 0) {
+      exit(0);
+    }
+    if (narg == 0) {
+      /* This is used to remove part of config.h */
+      if (strstr(buffer, "/-CUT-/")) {
+	exit(0);
+      }
+    } else if (strstr(buffer, "declspec(dllimport)")) {
+      /* This is used to removed the declspec(dllimport) from external.h */
+      continue;
+    }
+    puts(buffer);
+  }
+}