citum_engine/values/
message.rs

1/*
2SPDX-License-Identifier: MIT OR Apache-2.0
3SPDX-FileCopyrightText: © 2023-2026 Bruce D'Arcus and Citum contributors
4*/
5
6//! Rendering logic for locale-authored message components.
7//!
8//! A message component resolves each named argument through the normal template
9//! component renderer, then asks the active locale to evaluate the selected
10//! message ID.
11
12use crate::reference::Reference;
13use crate::values::{ComponentValues, ProcHints, ProcValues, RenderOptions};
14use citum_schema::locale::MessageArgs;
15use citum_schema::template::{MessageArgSource, TemplateMessage};
16use std::collections::HashMap;
17
18impl ComponentValues for TemplateMessage {
19    fn values<F: crate::render::format::OutputFormat<Output = String>>(
20        &self,
21        reference: &Reference,
22        hints: &ProcHints,
23        options: &RenderOptions<'_>,
24    ) -> Option<ProcValues<F::Output>> {
25        let mut named = HashMap::with_capacity(self.args.len());
26
27        for (name, source) in &self.args {
28            let value = render_message_arg::<F>(source, reference, hints, options)?;
29            if value.trim().is_empty() {
30                return None;
31            }
32            named.insert(name.clone(), value);
33        }
34
35        let args = MessageArgs {
36            named,
37            ..MessageArgs::default()
38        };
39        let mut value = options.locale.resolve_template_message(
40            &self.message,
41            &args,
42            self.form.as_ref(),
43            self.gender.clone(),
44        )?;
45
46        if crate::values::should_strip_periods(&self.rendering, options) {
47            value = crate::values::strip_trailing_periods(&value);
48        }
49
50        if let Some(tc) = self.rendering.text_case {
51            value = crate::values::text_case::apply_text_case(&value, tc);
52        }
53
54        if value.trim().is_empty() {
55            return None;
56        }
57        let term_backed = self.message.starts_with("term.");
58
59        Some(ProcValues {
60            value,
61            pre_formatted: !term_backed,
62            ..Default::default()
63        })
64    }
65}
66
67fn render_message_arg<F: crate::render::format::OutputFormat<Output = String>>(
68    source: &MessageArgSource,
69    reference: &Reference,
70    hints: &ProcHints,
71    options: &RenderOptions<'_>,
72) -> Option<String> {
73    if let MessageArgSource::Literal { literal } = source {
74        return Some(literal.clone());
75    }
76
77    let component = source.as_template_component()?;
78    if component.rendering().suppress == Some(true) {
79        return None;
80    }
81
82    let values = component.values::<F>(reference, hints, options)?;
83    if values.value.trim().is_empty() {
84        return None;
85    }
86
87    let fmt = F::default();
88    let proc_item = crate::render::ProcTemplateComponent {
89        template_component: component.clone(),
90        template_index: options.current_template_index,
91        value: values.value,
92        prefix: values.prefix,
93        suffix: values.suffix,
94        url: values.url,
95        ref_type: Some(reference.ref_type().clone()),
96        config: Some(options.config.clone()),
97        bibliography_config: options.bibliography_config.clone(),
98        item_language: crate::values::effective_component_language(reference, &component),
99        sentence_initial: false,
100        pre_formatted: values.pre_formatted,
101    };
102
103    let rendered = crate::render::render_component_with_format_and_renderer::<F>(
104        &proc_item,
105        &fmt,
106        options.show_semantics,
107    );
108    if rendered.trim().is_empty() {
109        None
110    } else {
111        Some(rendered)
112    }
113}
citum_engine/values/message.rs

citum_engine/values/
message.rs
