474 lines
13 KiB
Typst
474 lines
13 KiB
Typst
#import "./themes.typ": *
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#import "./utils.typ": *
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#let __gloss_entries = state("__gloss_entries", (:))
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#let __gloss_used = state("__gloss_used", (:))
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#let __gloss_label_prefix = "__gloss:"
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// Normalizes a dictionary entry by ensuring all required and optional keys exist
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// with appropriate default values.
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//
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// Parameters:
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// entry (dictionary): Input dictionary containing at least 'short' and optionally
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// 'long', 'plural', 'longplural', 'description', and 'group'
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//
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// Returns:
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// dictionary: Normalized dictionary with all expected keys populated
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//
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// Throws:
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// - If 'short' key is missing
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// - If 'short' value is not a string
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// - If 'short' value is an empty string
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//
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#let __normalize_entry(entry) = {
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// Validate required fields
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if not "short" in entry {
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panic("Entry must contain a 'short' key")
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}
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if type(entry.short) != "string" {
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panic("Entry 'short' must be a string")
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}
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if entry.short.trim() == "" {
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panic("Entry 'short' cannot be empty")
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}
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// Extract values with defaults, using consistent none for missing optionals
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let long = entry.at("long", default: none)
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// Return the normalized entry
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(
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short: entry.short,
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plural: entry.at("plural", default: __pluralize(entry.short)),
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long: long,
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longplural: entry.at("longplural", default: __pluralize(long)),
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description: entry.at("description", default: none),
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group: entry.at("group", default: "")
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)
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}
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// Checks if a key exists in the glossary state.
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//
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// Parameters:
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// key (string): The key to look up in the glossary entries
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//
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// Returns:
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// boolean: True if the key exists in the glossary, false otherwise
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//
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#let __has_entry(key) = {
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key in __gloss_entries.final().keys()
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}
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// Updates the glossary state by adding or updating an entry.
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//
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// Parameters:
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// key (string): The key under which to store the entry
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// entry (dictionary): The normalized glossary entry to store
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//
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// Returns:
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// none: Updates state as a side effect
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//
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#let __add_entry(key, entry) = {
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__gloss_entries.update(state => {
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state.insert(key, entry)
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state
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})
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}
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// Retrieves a glossary entry from the state.
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//
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// Parameters:
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// key (string): The key of the entry to retrieve
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//
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// Returns:
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// dictionary: The glossary entry associated with the key
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//
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// Throws:
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// - If the key does not exist in the glossary
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//
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#let __get_entry(key) = {
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let entries = __gloss_entries.final()
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if key not in entries.keys() {
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panic("Glossary error: Missing key '" + key + "'")
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}
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entries.at(key)
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}
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// Creates a prefixed label string for dictionary entries and term usage.
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//
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// Parameters:
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// key (string): The glossary entry key
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//
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// Returns:
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// string: The prefixed label string for dictionary entries
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//
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#let __dict_label_str(key) = {
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__gloss_label_prefix + key
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}
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// Creates a label object for dictionary entries.
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//
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// Parameters:
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// key (string): The glossary entry key
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//
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// Returns:
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// label: A Typst label object for the dictionary entry
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//
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#let __dict_label(key) = {
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label(__dict_label_str(key))
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}
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// Creates a prefixed label string for term usage in documents.
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//
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// Parameters:
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// key (string): The glossary entry key
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// index (int): The occurrence index of the term in the document
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//
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// Returns:
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// string: The prefixed label string for term usage
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//
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#let __term_label_str(key, index) = {
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__gloss_label_prefix + key + "." + str(index)
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}
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// Creates a label object for term usage in documents.
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//
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// Parameters:
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// key (string): The glossary entry key
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// index (int): The occurrence index of the term in the document
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//
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// Returns:
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// label: A Typst label object for the term usage
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//
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#let __term_label(key, index) = {
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label(__term_label_str(key, index))
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}
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// Updates the term usage count in the glossary state.
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//
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// Parameters:
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// key (string): The glossary entry key
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// count (int): The number of times the term has been used
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//
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// Returns:
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// none: Updates state as a side effect
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//
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#let __save_term_usage(key, count) = {
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__gloss_used.update(state => {
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state.insert(key, count)
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state
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})
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}
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// Renders a glossary term with various formatting options.
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//
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// This function handles the display of terms in the document, managing both first
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// and subsequent uses, pluralization, capitalization, and different display forms
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// (short, long, or combined forms).
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//
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// Parameters:
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// key (string): The glossary entry key to render
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// modifiers (array): Array of modifier strings that control term rendering:
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// - "cap": Capitalize the first letter of the term
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// - "pl": Use plural form of the term
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// - "both": Show "Long form (short form)"
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// - "short": Show only the short form
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// - "long": Show only the long form
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// - "def" or "desc": Show the term's description instead
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//
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// Returns:
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// content: Formatted term with appropriate labels and metadata
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//
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// Behavior:
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// - Without modifiers, first use shows "Long form (short form)", subsequent uses show short form
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// - Explicit modifiers override the default first-use behavior
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// - If long form is requested but unavailable, falls back to short form
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// - Maintains usage counter for term references
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//
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#let __gls(key, modifiers: array) = {
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// Fetch the entry and prepare label
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let entry = __get_entry(key)
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let entry_label = __dict_label_str(key)
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// Handle description mode
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if "def" in modifiers or "desc" in modifiers {
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return [#entry.description]
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}
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// Track term usage
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let entry_counter = counter(entry_label)
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entry_counter.step()
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let key_index = entry_counter.get().first()
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let first = key_index == 0
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__save_term_usage(key, key_index + 1)
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// Helper: Apply pluralization if requested
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let pluralize_term = (singular, plural) => {
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if "pl" in modifiers and plural != none { plural } else { singular }
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}
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// Helper: Apply capitalization if requested
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let capitalize_term = (term) => {
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if "cap" in modifiers { upper(term.first()) + term.slice(1) } else { term }
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}
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// Helper: Apply both pluralization and capitalization
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let format_term = (term, plural) => {
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capitalize_term(pluralize_term(term, plural))
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}
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// Helper: Select and format the appropriate term form
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let select_term = (is_long_mode, use_both) => {
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let short_form = format_term(entry.short, entry.plural)
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let long_form = if entry.long != none {
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format_term(entry.long, entry.longplural)
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} else {
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none
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}
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if use_both and long_form != none {
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[#long_form (#short_form)]
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} else if is_long_mode and long_form != none {
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[#long_form]
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} else {
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[#short_form]
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}
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}
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// Determine display mode from modifiers
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let is_both = "both" in modifiers
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let is_long = "long" in modifiers and not is_both
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let is_short = "short" in modifiers and not is_both and not is_long
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context {
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// Generate final display based on modifiers or default behavior
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let display = if is_both or is_long or is_short {
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select_term(is_long, is_both)
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} else {
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select_term(false, first)
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}
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// Emit term with metadata and usage label
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[#display#metadata(display)#__term_label(key, key_index)]
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}
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}
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// Creates page number links back to each usage of a glossary term.
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//
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// This function generates a comma-separated list of page numbers, where each
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// number links back to a usage of the term in the document. Duplicate page
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// numbers are removed to avoid redundancy.
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//
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// Parameters:
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// key (string): The glossary entry key
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// count (int): Number of times the term appears in the document
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//
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// Returns:
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// content: Comma-separated list of linked page numbers
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//
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// Example output: "1, 3, 5" where each number links to the term usage on that page
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//
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#let __create_backlinks(key, count) = {
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// Generate labels for each term usage
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let labels = for i in range(count) {
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(__term_label(key, i),)
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}
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// Get page numbers for each usage
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let pages = labels
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.map(l => locate(l))
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.map(loc => numbering(
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__default(loc.page-numbering(), "1"),
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loc.page()
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))
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// Create links, excluding duplicate page numbers
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let seen = ()
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let links = for i in range(labels.len()) {
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let label = labels.at(i)
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let page = pages.at(i)
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if seen.contains(page) {
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(none,)
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} else {
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seen.push(page)
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(link(label, page),)
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}
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}.filter(l => l != none)
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// Join links with commas
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links.join(", ")
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}
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// Initializes the glossary system and sets up term reference handling.
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//
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// This function is typically used with `#show: init-glossary`. It performs
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// three main tasks:
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// 1. Validates and loads glossary entries into the state
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// 2. Sets up reference handling to intercept and format term usage
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// 3. Applies custom term formatting if provided
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//
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// Parameters:
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// entries (dictionary): Dictionary of glossary entries where:
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// - keys are term identifiers
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// - values are entry dictionaries containing term details
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// show-term ((content) => content): Optional function to customize term rendering
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// Default: Returns term content unchanged
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// body (content): Document content to process
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//
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// Returns:
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// content: Processed document content with glossary functionality enabled
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//
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// Throws:
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// - If entries parameter is not a dictionary
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//
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#let init-glossary(
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entries,
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show-term: (term-body) => term-body,
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body
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) = context {
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// Validate entries parameter type
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if type(entries) != dictionary {
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panic("entries must be a dictionary, instead got: " + repr(entries))
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}
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// Process and store each glossary entry
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for (key, entry) in entries {
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__add_entry(key, __normalize_entry(entry))
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}
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// Set up reference handling for glossary terms
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show ref: r => {
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let (key, ..modifiers) = str(r.target).split(":")
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if __has_entry(key) {
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show-term(__gls(key, modifiers: modifiers))
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} else {
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r
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}
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}
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body
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}
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// Renders a complete glossary with customizable formatting and grouping.
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//
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// The glossary displays all used terms, optionally grouped by category, with page
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// references back to term usage. The appearance is controlled by a theme that
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// defines how sections, groups, and entries are formatted.
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//
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// Parameters:
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// title (string): Glossary section title (default: "Glossary")
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// theme (dictionary): Controls glossary appearance with three functions:
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// - section(title, body): Renders the main glossary section
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// - title: The glossary title
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// - body: Content containing all groups and entries
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// - group(name, index, total, body): Renders a group of related terms
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// - name: Group name
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// - index: Zero-based group index
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// - total: Total number of groups
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// - body: Content containing the group's entries
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// - entry(entry, index, total): Renders a single glossary entry
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// - entry: Dictionary containing:
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// - short: Short form of term
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// - long: Long form of term (optional)
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// - description: Term description (optional)
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// - label: Term's dictionary label
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// - pages: Linked page numbers where term appears
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// - index: Zero-based entry index within group
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// - total: Total entries in group
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// groups (array): Optional list of groups to include
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// If empty, includes all groups
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//
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// Returns:
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// content: Formatted glossary content
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//
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// Throws:
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// - If a requested group doesn't exist
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//
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#let glossary(
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title: "Glossary",
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theme: theme-twocol,
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ignore-case: false,
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groups: (),
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) = context {
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// Collect and organize entries by group
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let output = (:)
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let all_entries = __gloss_entries.final()
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let all_used = __gloss_used.final()
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// Determine which groups to process
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let all_groups = all_entries
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.values()
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.map(e => e.at("group"))
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.dedup()
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.sorted()
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let target_groups = if groups.len() == 0 {
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all_groups
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} else {
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// Validate requested groups exist
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for g in groups {
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if g not in all_groups {
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panic("Requested group not found: " + g)
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}
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}
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groups
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}
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// Process entries group by group
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for group in target_groups {
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let current_entries = ()
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// Collect all used entries for this group
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for (key, count) in all_used {
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let entry = all_entries.at(key)
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if entry.at("group") == group {
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current_entries.push((
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short: entry.at("short"),
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long: entry.at("long"),
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description: entry.at("description"),
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label: [#metadata(key)#__dict_label(key)],
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pages: __create_backlinks(key, count)
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))
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}
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}
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// Add non-empty groups to output
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if current_entries.len() > 0 {
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group = if group == none { "" } else { group }
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// sort entries by case insensitivity if requested
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let sorted_entries = current_entries
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// 1. create array of tuples with (lower [if ignore-case], entry)
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.map(e => { if ignore-case { (lower(e.short), e) } else { (e.short, e) } })
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// 2. sort the tuples (by first element then second)
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.sorted(key: t => t.first())
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// 3. strip away the tuple's first element, leaving an array of entries
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.map(t => t.last())
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// add entries to this group's output map
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output.insert(group, sorted_entries)
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}
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}
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// Render the glossary using the theme
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let group_index = 0
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(theme.section)(
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title,
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for (group, entries) in output {
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(theme.group)(
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group,
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group_index,
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output.len(),
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for (i, entry) in entries.enumerate() {
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(theme.entry)(entry, i, entries.len())
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}
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)
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group_index += 1
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}
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)
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}
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