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fix compilation and underflow issues, still doesn't work though

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This commit is contained in:
Lilly Rosaline 2021-10-01 00:03:14 -05:00
parent d8b8c7a48f
commit d3d31a1270
1 changed files with 45 additions and 27 deletions
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72
src/lib.rs
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@ -12,91 +12,109 @@ mod tests {
} }
/// Parses the command line arguments into a list of parameters. /// Parses the command line arguments into a list of parameters.
pub fn parse_args(input: &str, mode: u8) -> Vec<&str> { pub fn parse_args(input: &str, mode: u8) -> Vec<String> {
let args = &mut input.clone(); let args = &mut input.clone().chars().into_iter();
let mut vargs: Vec<char> = vec![];
for arg in args {
vargs.push(arg);
}
let args: &mut [char] = &mut vargs.as_mut_slice();
match mode { match mode {
/// Returns exact input string. /// Returns exact input string.
0x00 => {vec![args]}, 0x00 => {vec![input.to_string()]},
/// Seperates all strings /// Seperates all strings
0x07 => { 0x07 => {
let mut arguments: Vec<String> = vec![]; let mut arguments: Vec<String> = vec![];
let mut singlequotes: Vec<usize>; let mut singlequotes: Vec<usize> = vec![];
let mut doublequotes: Vec<usize>; let mut doublequotes: Vec<usize> = vec![];
let mut variables: Vec<usize>; let mut variables: Vec<usize> = vec![];
let mut escaped_spaces: Vec<usize>; let mut escaped_spaces: Vec<usize> = vec![];
let mut extraneous_backslashes: Vec<usize>; let mut extraneous_backslashes: Vec<usize> = vec![];
let mut marked_for_removal: Vec<usize>; let mut marked_for_removal: Vec<usize> = vec![];
// Begin by marking characters that have special behavior. // Begin by marking characters that have special behavior.
for (i, c) in args.chars().enumerate() { for (i, c) in args.iter().enumerate() {
match c { match c {
'\'' => { '\'' => {
if args[i - 1] == '\\' && args[i - 2] != '\\' { if args[if i != 0 {i - 1} else {0}] == '\\' && args[if i != 0 {i - 2} else {0}] != '\\' {
singlequotes.push(i); singlequotes.push(i);
} }
}, },
'\"' => { '\"' => {
if args[i - 1] == '\\' && args[i - 2] != '\\' { if args[if i != 0 {i - 1} else {0}] == '\\' && args[if i != 0 {i - 2} else {0}] != '\\' {
doublequotes.push(i); doublequotes.push(i);
} }
} }
'$' => { '$' => {
if args[i - 1] == '\\' && args[i - 2] != '\\' { if args[if i != 0 {i - 1} else {0}] == '\\' && args[if i != 0 {i - 2} else {0}] != '\\' {
variables.push(i); variables.push(i);
} }
} }
' ' => { ' ' => {
if args[i - 1] == '\\' && args[i - 2] != '\\' { if args[if i != 0 {i - 1} else {0}] == '\\' && args[if i != 0 {i - 2} else {0}] != '\\' {
escaped_spaces.push(i); escaped_spaces.push(i);
} }
} }
'\\' => { '\\' => {
if args[i - i] != '\\' && args[i + 1] == ' ' | '\n' { if args[if i != 0 {i - 1} else {0}] != '\\' && (args[if i != args.len() {i + 1} else {args.len()}] == ' ' || args[if i != args.len() {i + 1} else {args.len()}] == '\n') {
extraneous_backslashes.push(i); extraneous_backslashes.push(i);
} }
} }
_ => {} _ => {}
}; };
}
let mut quoted = false;
let mut singlequoted = false; let mut singlequoted = false;
let mut doublequoted = false;
for i in singlequotes { for i in singlequotes {
if !singlequoted { if !singlequoted && !quoted {
singlequoted = true; singlequoted = true;
quoted = true;
marked_for_removal.push(i); marked_for_removal.push(i);
} else { } else {
singlequoted = false; singlequoted = false;
if !doublequoted {
quoted = false;
}
} }
} }
let mut doublequoted = false;
for i in doublequotes { for i in doublequotes {
if !doublequoted { if !doublequoted && !quoted {
doublequoted = true; doublequoted = true;
quoted = true;
marked_for_removal.push(i); marked_for_removal.push(i);
} else { } else {
doublequoted = false; doublequoted = false;
if !singlequoted {
quoted = false;
}
} }
} }
for i in escaped_spaces { for i in escaped_spaces {
marked_for_removal.push(i - 1); marked_for_removal.push(if i != 0 {i - 1} else {0});
} }
for i in extraneous_backslashes { for i in extraneous_backslashes {
marked_for_removal.push(i); marked_for_removal.push(i);
} }
for i in marked_for_removal { for i in marked_for_removal {
args.insert(i, char::from(0xFF)); args[i] = char::from(0xFF);
} }
for (i, c) in args.chars().enumerate() { let mut last: usize = 0;
if c == char::from(0xFF) { for (i, c) in args.iter().enumerate() {
arguments.push(args.split_at(i).0.to_string()); if c == &char::from(0xFF) {
arguments.push(args.split_at(i).1.to_string()); let mut output: String = "".to_string();
args.to_vec().get(last + 1..if i != 0 {i - 1} else {0}).unwrap().iter().map(|x| output.push(*x));
arguments.push(output);
last = i;
} }
} }
return arguments; return arguments;
} },
},
/// ///
0x10 => { 0x10 => {
vec![]
}, },
_ => panic!("Unexpected input") _ => panic!("Unexpected input")
} }