brink-syntax 0.0.16

Syntax types and parser for inkle's ink narrative scripting language
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151

use super::*;

// ── Choice accessor invariants ───────────────────────────────────────
//
// These tests verify that all accessors on `Choice` return the expected
// Some/None pattern for a given input.

#[test]
fn choice_full_accessors() {
    // * (label) {cond} Start[bracket]inner -> target #tag
    let choice = parse_first::<Choice>("* (label) {cond} Start[bracket]inner -> target #tag\n");
    assert!(choice.bullets().is_some(), "bullets");
    assert!(choice.label().is_some(), "label");
    assert_eq!(choice.conditions().count(), 1, "conditions count");
    assert!(choice.start_content().is_some(), "start_content");
    assert!(choice.bracket_content().is_some(), "bracket_content");
    assert!(choice.inner_content().is_some(), "inner_content");
    assert!(choice.divert().is_some(), "divert");
    assert!(choice.tags().is_some(), "tags");
}

#[test]
fn choice_minimal_accessors() {
    // * Just text
    let choice = parse_first::<Choice>("* Just text\n");
    assert!(choice.bullets().is_some(), "bullets");
    assert!(choice.label().is_none(), "no label");
    assert_eq!(choice.conditions().count(), 0, "no conditions");
    assert!(choice.start_content().is_some(), "start_content");
    assert!(choice.bracket_content().is_none(), "no bracket_content");
    assert!(choice.inner_content().is_none(), "no inner_content");
    assert!(choice.divert().is_none(), "no divert");
    assert!(choice.tags().is_none(), "no tags");
}

// ── ContentLine accessor invariants ──────────────────────────────────

#[test]
fn content_line_full_accessors() {
    // Text -> target #tag
    let cl = parse_first::<ContentLine>("Text -> target #tag\n");
    assert!(cl.mixed_content().is_some(), "mixed_content");
    assert!(cl.divert().is_some(), "divert");
    assert!(cl.tags().is_some(), "tags");
}

#[test]
fn content_line_text_only() {
    let cl = parse_first::<ContentLine>("Just text\n");
    assert!(cl.mixed_content().is_some(), "mixed_content");
    assert!(cl.divert().is_none(), "no divert");
    assert!(cl.tags().is_none(), "no tags");
}

#[test]
fn content_line_divert_only() {
    let cl = parse_first::<ContentLine>("-> target\n");
    assert!(cl.mixed_content().is_none(), "no mixed_content");
    assert!(cl.divert().is_some(), "divert");
    assert!(cl.tags().is_none(), "no tags");
}

#[test]
fn content_line_tags_only() {
    // A line with just tags parses as a TagLine, not ContentLine.
    // A content line with text + tags:
    let cl = parse_first::<ContentLine>("Hello #tag\n");
    assert!(cl.mixed_content().is_some(), "mixed_content");
    assert!(cl.tags().is_some(), "tags");
}

// ── Gather accessor invariants ───────────────────────────────────────

#[test]
fn gather_full_accessors() {
    let gather = parse_first::<Gather>("- (lbl) Text -> target #tag\n");
    assert!(gather.dashes().is_some(), "dashes");
    assert!(gather.label().is_some(), "label");
    assert!(gather.mixed_content().is_some(), "mixed_content");
    assert!(gather.divert().is_some(), "divert");
    assert!(gather.tags().is_some(), "tags");
}

#[test]
fn gather_minimal_accessors() {
    let gather = parse_first::<Gather>("- Text\n");
    assert!(gather.dashes().is_some(), "dashes");
    assert!(gather.label().is_none(), "no label");
    assert!(gather.mixed_content().is_some(), "mixed_content");
    assert!(gather.divert().is_none(), "no divert");
    assert!(gather.tags().is_none(), "no tags");
}

#[test]
fn gather_divert_only() {
    let gather = parse_first::<Gather>("- -> target\n");
    assert!(gather.dashes().is_some(), "dashes");
    assert!(gather.divert().is_some(), "divert");
}

// ── KnotBody accessor invariants ─────────────────────────────────────

#[test]
fn knot_body_mixed_content() {
    let tree = parse_tree(
        "=== k ===\n\
         Line one\n\
         ~ temp x = 1\n\
         * Choice A\n\
         * Choice B\n\
         - Gather\n\
         = stitch_one\n\
         Stitch content\n",
    );
    let body: KnotBody = first(tree.syntax());
    assert!(body.content_lines().count() >= 1, "has content_lines");
    assert!(body.logic_lines().count() >= 1, "has logic_lines");
    assert_eq!(body.choices().count(), 2, "choices count");
    assert_eq!(body.gathers().count(), 1, "gathers count");
    assert_eq!(body.stitches().count(), 1, "stitches count");
}

#[test]
fn knot_body_empty() {
    let tree = parse_tree("=== k ===\n");
    let body: KnotBody = first(tree.syntax());
    assert_eq!(body.content_lines().count(), 0, "no content_lines");
    assert_eq!(body.logic_lines().count(), 0, "no logic_lines");
    assert_eq!(body.choices().count(), 0, "no choices");
    assert_eq!(body.gathers().count(), 0, "no gathers");
    assert_eq!(body.stitches().count(), 0, "no stitches");
}

// ── StitchBody accessor invariants ───────────────────────────────────

#[test]
fn stitch_body_mixed_content() {
    let tree = parse_tree(
        "=== k ===\n\
         = s\n\
         Line one\n\
         ~ temp x = 1\n\
         * Choice A\n\
         - Gather\n",
    );
    let body: StitchBody = first(tree.syntax());
    assert!(body.content_lines().count() >= 1, "has content_lines");
    assert!(body.logic_lines().count() >= 1, "has logic_lines");
    assert_eq!(body.choices().count(), 1, "choices count");
    assert_eq!(body.gathers().count(), 1, "gathers count");
}