Initial revision

darcs-hash:20050920132639-ac50b-fa3b476891e1f5f67207cf4cc7bf623834cc5edc.gz

gen_hdr2.c

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+/** \file gen_hdr2.c
+  A program that reads data from stdin and outputs it as a C string.
+
+   It is used as a part of the build process to generate help texts
+   for the built in commands.
+*/
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+/**
+   The main function, does all the work
+*/
+int main()
+{
+	int line = 0;
+	printf( "\t\t\"" );
+	int c;
+	int count=0;
+	while( (c=getchar()) != EOF )
+	{
+		if( c == '\n' )
+			line++;
+		
+		if( line > 4 )
+			break;
+	} 
+	
+	while( (c=getchar()) != EOF )
+	{
+		if( (c >= 'a' && c <= 'z' ) || 
+			(c >= 'A' && c <= 'Z' ) || 
+			(c >= '0' && c <= '9' ) ||
+			( strchr(" ,.!;:-_#$%&(){}[]<>=?+-*/'",c) != 0) )
+		{
+			count++;
+			putchar(c);
+		}
+		else
+		{
+			switch(c)
+			{
+				case '\n':
+					printf( "\\n" );
+					printf( "\"\n\t\t\"" );
+					count =0;
+					break;
+				case '\t':
+					printf( "\\t" );
+					count +=2;
+					break;
+				case '\r':
+					printf( "\\r" );
+					count +=2;
+					break;
+					
+				case '\"':
+				case '\\':
+					printf( "\\%c",c );
+					count +=2;
+					break;
+					
+				default:
+					count +=7;
+					printf( "\\x%02x\" \"", c );
+					break;
+			}
+		}
+		if( count > 60 )
+		{
+			count=0;
+			printf( "\"\n\t\t\"" );
+		}
+	}
+	printf( "\"" );
+	return 0;	
+}