txt2Cstring

commit e9a2383ffcb6086aae58bf877834b98c2e66bcbc
parent f9a13241b19c38c909100f3d9e739cf8ffc29930
Author: Remy Noulin <loader2x@gmail.com>
Date:   Wed, 23 Mar 2022 16:44:25 -0400

convert non printable characters to hexidecimal notation, add support for stdin stream

txt2Cstring.c | 68 +++++++++++++++++++++++++++++++++++++++++++++++++----------
1 file changed, 57 insertions(+), 11 deletions(-)

Diffstat:
M
txt2Cstring.c
 | 
68
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++-----------

1 file changed, 57 insertions(+), 11 deletions(-)
diff --git a/txt2Cstring.c b/txt2Cstring.c
@@ -6,33 +6,79 @@
 
 int argc; char **argv;
 
-/* enable/disable logging */
-/* #undef pLog */
-/* #define pLog(...) */
-
 int main(int ARGC, char** ARGV) {
 
   argc = ARGC; argv = ARGV;
 
   initLibsheepy(ARGV[0]);
-  setLogMode(LOG_VERBOSE);
+
+  cleanSmallArrayP(lines) = null;
 
   if (argc < 2) {
-    logXFailure("Filename missing");
-  }
+    char *s = null;
+    // no arguments
+    // check stdin
+
+    // read all the data from stdin to s
+    fd_set readfds;
+    FD_ZERO(&readfds);
+    FD_SET(STDIN_FILENO, &readfds);
 
-  if (not isPath(argv[1])) {
-    logXFailure(formatS("File "BLD RED UDL "'%s'"RST" not found ", argv[1]));
+    struct timeval timeout;
+    timeout.tv_sec = 0;
+    timeout.tv_usec = 1000;
+
+    int chr;
+
+    int sel_rv = select(1, &readfds, NULL, NULL, &timeout);
+    if (sel_rv > 0) {
+      while ((chr = getchar()) != EOF) pErrorNULL(appendG(&s,chr));
+    } else if (sel_rv == -1) {
+      perror("select failed");
+    }
+
+    if (isEmptyG(s)) {
+      logW("Empty string.");
+      XSUCCESS;
+    }
+    cleanSmallString(S);
+    setValG(&S, s);
+    lines = splitG(&S, '\n');
   }
+  else {
+    if (not isPath(argv[1])) {
+      logXFailure(formatS("File "BLD RED UDL "'%s'"RST" not found ", argv[1]));
+    }
 
-  createAllocateSmallArray(lines);
-  readFileG(lines, argv[1]);
+    lines = allocG(rtSmallArrayt);
+    readFileG(lines, argv[1]);
+  }
 
   iter(lines, L) {
     castS(l,L);
     // replace '\' with '\\'
     replaceG(l, "\\", "\\\\", 0);
     replaceG(l, "\"", "\\\"", 0);
+    replaceG(l, "\r", "\\r", 0);
+    replaceG(l, "\t", "\\t", 0);
+    replaceG(l, "\a", "\\a", 0);
+    replaceG(l, "\b", "\\b", 0);
+    replaceG(l, "\v", "\\v", 0);
+    replaceG(l, "\f", "\\f", 0);
+    // print non printable characters as hexadecimal "\xNN"
+    cleanCharP(s) = malloc(4*lenG(l)+1);
+    char *t       = s;
+    char *in      = getValG(l);
+    range(i, lenG(l)) {
+      if (isprint(in[i]))
+        *(t++) = in[i];
+      else {
+        sprintf(t, "\\x%02X", (u8)in[i]);
+        t += 4;
+      }
+    }
+    *t = 0;
+    setValG(l, s);
     prependG(l, "\"");
     appendG(l, "\\n\"");
     setPG(lines, iterIndexG(lines), l);