// consume input until next character is found. ignores whitespace, comments
// and preprocessor directives. return value of -1 indicates
// error condition (such as end of file) - treat as clean end of input
// condition even if it is an actual error. return value >0 indicates ASCII
// character code also stored in variable "character".
int findNextCharacter() {
int inComment; // are we scanning a comment?
inComment = 0;
while (1) {
if (inComment) {
character = getchar();
if (character == 10) // ASCII code 10 = linefeed
inComment = 0;
else if (character == 13) // ASCII code 13 = carriage return
inComment = 0;
else if (character == -1) // end of file is represented by -1
return character;
} else if (isCharacterWhitespace())
character = getchar();
else if (character == 35) { // ACCII code 35 = #
character = getchar();
inComment = 1;
} else if (character == 47) { // ASCII code 47 = /
character = getchar();
if (character == 47) { // ASCII code 47 = /
character = getchar();
inComment = 1;
} else
return character;
} else
return character;
}
}
// consume input until next character is found. ignores whitespace, comments
// and preprocessor directives. return value of -1 indicates
// error condition (such as end of file) - treat as clean end of input
// condition even if it is an actual error. return value >0 indicates ASCII
// character code also stored in variable "character".
int findNextCharacter() {
int inComment; // are we scanning a comment?
inComment = 0;
while (1) {
if (inComment) {
*character = scanner_getchar();
if (*character == 10) // ASCII code 10 = linefeed
inComment = 0;
else if (*character == 13) // ASCII code 13 = carriage return
inComment = 0;
else if (*character == -1) // end of file is represented by -1
return *character;
} else if (isCharacterWhitespace())
*character = scanner_getchar();
else if (*character == 35) { // ACCII code 35 = #
*character = scanner_getchar();
inComment = 1;
} else if (*character == 47) { // ASCII code 47 = /
if(scanner_lookahead == 47) { // ASCII code 47 = /
// current char and lookahead char are slashes: consume both and assume we are inside a comment block
*character = scanner_getchar();
*character = scanner_getchar();
inComment = 1;
} else
return *character;
} else
return *character;
}
}