59 lines
1.7 KiB
C++
59 lines
1.7 KiB
C++
#pragma once
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#include <optional>
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#include <string>
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#include <vector>
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namespace jinja {
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// allow differentiate between user input strings and template strings
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// transformations should handle this information as follows:
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// - one-to-one (e.g., uppercase, lowercase): preserve is_input flag
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// - one-to-many (e.g., strip): if input string is marked as is_input, all resulting parts should be marked as is_input
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// - many-to-one (e.g., concat): if ALL input parts are marked as is_input, resulting part should be marked as is_input
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struct string_part {
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bool is_input = false; // may skip parsing special tokens if true
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std::string val;
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bool is_uppercase() const;
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bool is_lowercase() const;
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};
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struct string {
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std::vector<string_part> parts;
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string() = default;
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string(const std::string & v, bool user_input = false) {
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parts.push_back({user_input, v});
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}
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string(int v) {
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parts.push_back({false, std::to_string(v)});
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}
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string(double v) {
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parts.push_back({false, std::to_string(v)});
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}
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// mark all parts as user input
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void mark_input();
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std::string str() const;
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size_t length() const;
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bool all_parts_are_input() const;
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bool is_uppercase() const;
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bool is_lowercase() const;
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// mark this string as input if other has ALL parts as input
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void mark_input_based_on(const string & other);
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string append(const string & other);
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// in-place transformations
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string uppercase();
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string lowercase();
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string capitalize();
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string titlecase();
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string strip(bool left, bool right, std::optional<const std::string_view> chars = std::nullopt);
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};
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} // namespace jinja
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