Added 10 more gists.

piglatin.l/README.md

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+A Lex program that converts an input text to piglatin.

piglatin.l/piglatin.l

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+%{
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdbool.h>
+#include <ctype.h>
+
+bool isconsonant(int);
+
+%}
+
+%option outfile="piglatin.c"
+%option always-interactive
+%option nounput noinput
+
+word   [a-zA-Z]+
+
+%%
+
+{word} { if (isconsonant(yytext[0])) {
+             int numcons = 0;
+             while (isconsonant(yytext[numcons++]) && numcons < strlen(yytext))
+                 yytext[numcons - 1] = tolower(yytext[numcons - 1]);
+             printf("%s", &yytext[--numcons]);
+             yytext[numcons] = '\0';
+             printf("%say", yytext);
+             yytext[numcons] = ' ';
+         } else
+	     printf("%sway", yytext); 
+       }
+"\n"   { putc('\n', stdout); }
+.      { putc(yytext[0], stdout); }
+
+%%
+
+bool isconsonant(int c) {
+    if (!isalpha(c))
+        return false;
+
+    c = tolower(c);
+    if (c == 'a' || c == 'e' || c == 'i' || c == 'o' || c == 'u')
+        return false;
+
+    return true;
+}