73 lines
2.4 KiB
Rust
73 lines
2.4 KiB
Rust
mod base;
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mod char_;
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mod detect_columns;
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mod encode_decode;
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mod format;
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mod guess_width;
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mod parse;
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mod split;
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mod str_;
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pub use base::{DecodeBase, EncodeBase};
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pub use char_::Char;
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pub use detect_columns::*;
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pub use encode_decode::*;
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pub use format::*;
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pub use parse::*;
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pub use split::*;
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pub use str_::*;
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use nu_engine::CallExt;
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use nu_protocol::{
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engine::{Call, EngineState, Stack, StateWorkingSet},
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ShellError,
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};
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// For handling the grapheme_cluster related flags on some commands.
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// This ensures the error messages are consistent.
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pub fn grapheme_flags(
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engine_state: &EngineState,
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stack: &mut Stack,
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call: &Call,
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) -> Result<bool, ShellError> {
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let g_flag = call.has_flag(engine_state, stack, "grapheme-clusters")?;
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// Check for the other flags and produce errors if they exist.
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// Note that Nushell already prevents nonexistent flags from being used with commands,
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// so this function can be reused for both the --utf-8-bytes commands and the --code-points commands.
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if g_flag && call.has_flag(engine_state, stack, "utf-8-bytes")? {
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Err(ShellError::IncompatibleParametersSingle {
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msg: "Incompatible flags: --grapheme-clusters (-g) and --utf-8-bytes (-b)".to_string(),
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span: call.head,
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})?
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}
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if g_flag && call.has_flag(engine_state, stack, "code-points")? {
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Err(ShellError::IncompatibleParametersSingle {
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msg: "Incompatible flags: --grapheme-clusters (-g) and --utf-8-bytes (-b)".to_string(),
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span: call.head,
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})?
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}
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// Grapheme cluster usage is decided by the non-default -g flag
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Ok(g_flag)
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}
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// Const version of grapheme_flags
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pub fn grapheme_flags_const(
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working_set: &StateWorkingSet,
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call: &Call,
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) -> Result<bool, ShellError> {
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let g_flag = call.has_flag_const(working_set, "grapheme-clusters")?;
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if g_flag && call.has_flag_const(working_set, "utf-8-bytes")? {
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Err(ShellError::IncompatibleParametersSingle {
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msg: "Incompatible flags: --grapheme-clusters (-g) and --utf-8-bytes (-b)".to_string(),
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span: call.head,
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})?
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}
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if g_flag && call.has_flag_const(working_set, "code-points")? {
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Err(ShellError::IncompatibleParametersSingle {
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msg: "Incompatible flags: --grapheme-clusters (-g) and --utf-8-bytes (-b)".to_string(),
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span: call.head,
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})?
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}
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Ok(g_flag)
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}
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