# Guidelines:
# • A message code must always have the same meaning forever.
# • Codes may be retired or introduced in new releases. In order to avoid
#   clashes, retired codes must not be deleted.
# • Codes should not themselves reflect classification, e.g. a range for parse
#   errors and a range for each keymap component.
# • Codes should not be assigned sequentially because it is misleading.
# • Codes must be in the range 1..999. This range may be extended once every
#   code has be assigned.
#
# See the following guidelines for futher details on good practices:
# https://github.com/haskellfoundation/error-message-index/blob/main/tool-developers.md#code-assignment-recommendations

# NOTE: Field “added: ALWAYS” means that the precise version is unknown and
# anterior to the introduction of the message registry. It will be replaced by
# the default version 1.0.0 in the generated documentation. While this is deemed
# good enough to avoid spelunking commit history, a more precise version would
# be welcome.

# TODO: fix missing detailed description, examples, resolution

- id: "malformed-number-literal"
  code: 34
  added: ALWAYS
  type: error
  description: "Warn on malformed number literals"
  details: |
    xkbcommon can parse the following number literal formats:

    - *decimal integer:* 1, 123, etc.
    - *decimal floating-point number:* 1.23, etc.
    - *hexadecimal integer:* prefixed with “0x”: 0x123, 0xff, 0xAB, etc.
- id: "conflicting-key-type-preserve-entries"
  code: 43
  added: ALWAYS
  type: warning
  description: "Conflicting “preserve” entries in a key type"
- id: "unsupported-modifier-mask"
  code: 60
  added: ALWAYS
  type: error
  description: "Warn on unsupported modifier mask"
- id: "expected-array-entry"
  code: 77
  added: ALWAYS
  type: error
  description: "Expected an array entry, but the index is missing"
- id: "illegal-keycode-alias"
  code: 101
  added: ALWAYS
  type: warning
  description: "Illegal keycode alias with the name of a real key"
- id: "unrecognized-keysym"
  code: 107
  added: ALWAYS
  type: warning
  description: "Warn on unrecognized keysyms"
  details: |
    xkbcommon replaces keysyms it does not recognize by the keysym `NoSymbol`.

    You may find the list of supported keysyms in
    `include/xkbcommon/xkbcommon-keysyms.h`.
  examples:
    - name: Unrecognized keysym “`coma`”
      description: |
        **Error message:**

        ```
        xkbcommon: WARNING: [XKB-107] de:31:20: unrecognized keysym "coma"
        ```

        xkbcommon does not recognize the keysym “`coma`”. It is most probably
        a typo for “<code>com<em>m</em>a</code>”.
        See: `XKB_KEY_comma` in `include/xkbcommon/xkbcommon-keysyms.h`.
      before: |
        ```c
        key <AB08> {[ coma, semicolon, periodcentered, multiply ]};
        ```
      after: |
        ```c
        key <AB08> {[ comma, semicolon, periodcentered, multiply ]};
        ```
- id: "undeclared-virtual-modifier"
  code: 123
  added: ALWAYS
  type: error
  description: "A virtual modifier is used before being declared"
- id: "wrong-statement-type"
  code: 150
  added: ALWAYS
  type: error
  description: "The type of the statement is not allowed in the context"
- id: "unsupported-geometry-section"
  code: 172
  added: ALWAYS
  type: warning
  description: "Geometry sections are not supported"
- id: "cannot-infer-key-type"
  code: 183
  added: ALWAYS
  type: warning
  description: "Warn if no key type can be inferred"
- id: "invalid-escape-sequence"
  code: 193
  added: ALWAYS
  type: warning
  description: "Invalid escape sequence in a string"
- id: "illegal-key-type-preserve-result"
  code: 195
  added: ALWAYS
  type: warning
  description: "The result of a key type “preserve” entry must be a subset of its input modifiers."
- id: "invalid-include-statement"
  code: 203
  added: ALWAYS
  type: error
  description: "Syntax error in the include statement"
- id: "invalid-modmap-entry"
  code: 206
  added: ALWAYS
  type: error
  description: "A modmap entry is invalid"
- id: "unsupported-group-index"
  code: 237
  added: ALWAYS
  type: error
  description: "Warn when a group index is not supported"
  details: |
    xkbcommon supports group index in the range (1..{{XKB_MAX_GROUPS}}).
- id: "conflicting-key-type-level-names"
  code: 239
  added: ALWAYS
  type: warning
  description: "The name of a key type level is defined multiple times."
- id: "invalid-set-default-statement"
  code: 254
  added: ALWAYS
  type: error
  description: "Invalid statement setting default values"
- id: "conflicting-key-type-map-entry"
  code: 266
  added: ALWAYS
  type: warning
  description: "Conflicting “map” entries in type definition"
- id: "undefined-key-type"
  code: 286
  added: ALWAYS
  type: warning
  description: "Warn if using an undefined key type"
- id: "non-base-group-name"
  code: 305
  added: ALWAYS
  type: warning
  description: "Warn if a group name was defined for group other than the first one"
- id: "unsupported-shift-level"
  code: 312
  added: ALWAYS
  type: error
  description: "Warn when a shift level is not supported"
  details: |
    Shift levels are _one_-indexed. xkbcommon supports two formats of shift levels:
    as numbers and as identifiers `LevelN`, where `N` is in the range (1..8).
- id: "included-file-not-found"
  code: 338
  added: ALWAYS
  type: error
  description: "Could not find a file used in an include statement"
- id: "unknown-operator"
  code: 345
  added: ALWAYS
  type: error
  description: "Use of an operator that is unknown and thus unsupported"
- id: "duplicate-entry"
  code: 378
  added: ALWAYS
  type: warning
  description: "An entry is duplicated and will be ignored"
- id: "conflicting-key-type-definitions"
  code: 407
  added: ALWAYS
  type: warning
  description: "Conflicting definitions of a key type"
  details: |
    The given key type is defined multiple times, but only one definition is kept.
- id: "wrong-scope"
  code: 428
  added: ALWAYS
  type: error
  description: "A statement is in a wrong scope and should be moved"
- id: "missing-default-section"
  code: 433
  added: ALWAYS
  type: warning
  description: "Missing default section in included file"
  details: |
    When using an include statement, the included file may contains multiple sections.
    The include statement may specify the name of the section to include, or leave it
    unspecified. In the latter case, the included file must then define a *default* section.
    The present warning is shown when no default section is defined.

    To solve this, either fix the include statement by specifying the exact section to
    include, or declare a default section in the included file.
- id: "conflicting-key-symbol"
  code: 461
  added: ALWAYS
  type: warning
  description: "Warn if there are conflicting keysyms while merging keys"
- id: "invalid-operation"
  code: 478
  added: ALWAYS
  type: error
  description: "The operation is invalid in the context"
- id: "numeric-keysym"
  code: 489
  added: 1.6.0
  type: warning
  description: "Warn on numeric keysym (other than 0-9)"
  details: |
    Numeric keysyms are not human-friendly. Use the corresponding named keysym
    or Unicode keysym, if available.
  examples:
    - name: Hexadecimal keysym `0x1001ed0`
      description: |
        **Error message:**

        ```
        xkbcommon: WARNING: [XKB-489] numeric keysym "0x1001ed0"
        ```
      before: |
        ```c
        key <AE01> { [ 0x1001ed0] };
        ```
      after: |
        ```c
        // Preferred form: human-friendly
        key <AE01> { [ Ocircumflexacute ] };
        // or
        key <AE01> { [ U1ED0 ] };
        ```
- id: "extra-symbols-ignored"
  code: 516
  added: ALWAYS
  type: warning
  description: "TODO: add description"
- id: "conflicting-key-name"
  code: 523
  added: ALWAYS
  type: warning
  description: "Conflicting definitions of a key name or alias"
- id: "allocation-error"
  code: 550
  added: ALWAYS
  type: error
  description: "Cannot allocate memory"
- id: "wrong-field-type"
  code: 578
  added: ALWAYS
  type: error
  description: "Warn when a field has not the expected type"
- id: "invalid-real-modifier"
  code: 623
  added: ALWAYS
  type: error
  description: "Invalid _real_ modifier"
- id: "unknown-char-escape-sequence"
  code: 645
  added: ALWAYS
  type: warning
  description: "Warn on unknown escape sequence in string literal"
  details: |
    xkbcommon support the following escape sequences in string literals:

    | Escape sequence | Corresponding character             |
    | --------------- | ----------------------------------- |
    | `\b`            | `U+0008` Backspace                  |
    | `\t`            | `U+0009` Character tabulation       |
    | `\n`            | `U+000A` Line feed                  |
    | `\v`            | `U+000B` Vertical tabulation        |
    | `\f`            | `U+000C` Form feed                  |
    | `\r`            | `U+000D` Carriage return            |
    | `\e`            | `U+001B` Escape                     |
    | `\\`            | `U+005C` Backslash                  |
    | `\NNN`          | _Octal_ escape, from `\0` to `\777` |
- id: "invalid-included-file"
  code: 661
  added: ALWAYS
  type: error
  description: "The target file of an include statement could not be processed"
- id: "multiple-groups-at-once"
  code: 700
  added: ALWAYS
  type: warning
  description: "Warn if a key defines multiple groups at once"
- id: "unsupported-symbols-field"
  code: 711
  added: ALWAYS
  type: warning
  description: "A legacy X11 symbol field is not supported"
- id: "invalid-syntax"
  code: 769
  added: ALWAYS
  type: error
  description: "The syntax is invalid and the file cannot be parsed"
- id: "undefined-keycode"
  code: 770
  added: ALWAYS
  type: warning
  description: "Reference to an undefined keycode"
- id: "invalid-expression-type"
  code: 784
  added: ALWAYS
  type: error
  description: "An expression has not the expected type"
- id: "invalid-value"
  code: 796
  added: ALWAYS
  type: error
  description: "A value is invalid and will be ignored"
- id: "conflicting-modmap"
  code: 800
  added: ALWAYS
  type: warning
  description: "Warn if there are conflicting modmap definitions"
  details: |
    @todo detailed explanation and examples
- id: "unknown-field"
  code: 812
  added: ALWAYS
  type: error
  description: "A field is unknown and will be ignored"
- id: "conflicting-key-action"
  code: 883
  added: ALWAYS
  type: warning
  description: "Warn if there are conflicting actions while merging keys"
- id: "conflicting-key-type-merging-groups"
  code: 893
  added: ALWAYS
  type: warning
  description: "Warn if there are conflicting key types while merging groups"
- id: "conflicting-key-symbols-entry"
  code: 901
  added: ALWAYS
  type: error
  description: "Conflicting symbols entry for a key"
- id: "missing-symbols-group-name-index"
  code: 903
  added: ALWAYS
  type: warning
  description: "Missing group index in a group name entry"
- id: "conflicting-key-fields"
  code: 935
  added: ALWAYS
  type: warning
  description: "Warn if there are conflicting fields while merging keys"
- id: "invalid-identifier"
  code: 949
  added: ALWAYS
  type: error
  description: "An identifier is used but is not built-in"
- id: "unresolved-keymap-symbol"
  code: 965
  added: ALWAYS
  type: warning
  description: "Warn if using a symbol not defined in the keymap"
- id: "undeclared-modifiers-in-key-type"
  code: 971
  added: ALWAYS
  type: warning
  description: "Some modifiers used in a key type “map” or “preserve” entry are not declared"
  details: |
    The modifiers used in `map` or `preserve` entries should be declared using the entry
    `modifiers` in the key type.

# TODO: deprecated keysym
# TODO: unicode keysym when named and recommended keysym exists