add_ed/error/
display.rs

1use super::*;
2
3impl std::fmt::Display for EdError {
4  fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
5    use EdError::*;
6    match self {
7      Internal(e) => write!(f,
8        "Internal error! Save and quit, and please report at {}\n\n debug data: {:?}",
9        "`https://github.com/sidju/add-ed/issues`",
10        e,
11      ),
12      IO(e) => write!(f,
13        "IO error: {}",
14        e.inner,
15      ),
16      UI(e) => write!(f,
17        "UI error: {}",
18        e.inner,
19      ),
20
21      InfiniteRecursion => write!(f,
22        "Execution recursion hit recursion limit, no changes made."
23      ),
24
25      IndexTooBig{index, buffer_len} => {
26        if *buffer_len == 0 {
27          write!(f,
28            "Buffer is empty, so no valid selections or lines can exist.",
29          )
30        } else {
31          write!(f,
32            "Given index ({}) overshoots the length of the buffer ({}).",
33            index,
34            buffer_len,
35          )
36        }
37      },
38      Line0Invalid => write!(f,
39        "Index 0 was given when a line was needed, there is no line at index 0."
40      ),
41      SelectionEmpty(s) => write!(f,
42        "Selection given ({},{}) is empty or inverted.",
43        s.0, s.1,
44      ),
45      SelectionForbidden => write!(f,
46        "That command doesn't allow any selection."
47      ),
48
49      UnsavedChanges => write!(f,
50        "Unsaved changes! Capitalise command to ignore.",
51      ),
52      NoOp => write!(f,
53        "That combination of command and arguments doesn't do anything.",
54      ),
55      UndoIndexNegative{relative_undo_limit} => write!(f,
56        "Tried to undo to before undo history.\nHighest valid nr of undo steps is {}.",
57        relative_undo_limit,
58      ),
59      UndoIndexTooBig{index, history_len, relative_redo_limit} => write!(f,
60        "Tried to redo beyond existing snapshots.\nHigest valid nr of redo steps is {}.\n(Given index: {}, Highest valid index: {})",
61        relative_redo_limit,
62        index,
63        history_len - 1,
64      ),
65      CommandEscapeForbidden(_path) => write!(f,
66        "Command doesn't accept shell escapes. Use \\! if path begins with !.",
67      ),
68      TagInvalid(args) => write!(f,
69        "Invalid tag given: {}. Tags should be a single character.",
70        args,
71      ),
72      TagNoMatch(t) => write!(f,
73        "Could not find any line matching the tag `{}`.",
74        t,
75      ),
76      RegexInvalid{regex, error} => write!(f,
77        "Regex `{}` invalid! {}.",
78        regex,
79        error,
80      ),
81      RegexNoMatch(regex) => write!(f,
82        "No matches found for regex `{}`.",
83        regex,
84      ),
85      PrintAfterWipe => write!(f,
86        "Would print after deleting whole buffer, refusing to run command.",
87      ),
88
89      DefaultFileUnset => write!(f,
90        "Couldn't read default file as it hasn't been set. Set by opening file or with the `f` command.",
91      ),
92      DefaultShellCommandUnset => write!(f,
93        "Couldn't read default shell command as it hasn't been set. Run a fully defined shell command first.",
94      ),
95      DefaultSArgsUnset => write!(f,
96        "Couldn't read default `s` arguments as they haven't been set. Run `s` with arguments first.",
97      ),
98
99      IndexSpecialAfterStart{prior_index, special_index} => write!(f,
100        "Special index character `{}` found after index `{}`.",
101        special_index,
102        prior_index,
103      ),
104      IndexNotInt(text) => write!(f,
105        "Failed to parse given index string `{}` as a number.",
106        text,
107      ),
108      OffsetNotInt(text) => write!(f,
109        "Failed to parse given index offset `{}` as a number.",
110        text,
111      ),
112      IndicesUnrelated{prior_index, unrelated_index} => write!(f,
113        "Received non-chainable index `{}` immediately after index `{}`.",
114        unrelated_index,
115        prior_index,
116      ),
117      IndexUnfinished(text) => write!(f,
118        "Special index unfinished: `{}`.",
119        text,
120      ),
121
122      CommandUndefined(cmd) => write!(f,
123        "Unknown command `{}`.",
124        cmd,
125      ),
126      ArgumentListEscapedEnd(arguments) => write!(f,
127        "Argument list's end was escaped: `{}`.",
128        arguments,
129      ),
130      ArgumentsWrongNr{expected, received} => write!(f,
131        "Wrong nr of arguments given. Expected {}, received {}.",
132        expected,
133        received,
134      ),
135      ScrollNotInt(text) => write!(f,
136        "Failed to parse nr of lines to scroll `{}` as a number.",
137        text,
138      ),
139      UndoStepsNotInt(text) => write!(f,
140        "Failed to parse nr of changes to undo/redo `{}` as a number.",
141        text,
142      ),
143      ReflowNotInt{error: e, text: t} => write!(f,
144        "Failed to parse nr of columns to reflow within `{}` as a number: {}",
145        t,
146        e,
147      ),
148      MacroUndefined(macro_name) => write!(f,
149        "Given macro `{}` is not defined.",
150        macro_name,
151      ),
152
153      FlagDuplicate(flag) => write!(f,
154        "Flag `{}` was given more than once.",
155        flag,
156      ),
157      FlagUndefined(flag) => write!(f,
158        "Given flag `{}` isn't valid for that command.",
159        flag,
160      ),
161    }
162  }
163}
add_ed/error/display.rs

add_ed/error/
display.rs
