ruvector_scipix/output/
docx.rs

1//! DOCX (Microsoft Word) formatter with Office Math ML support
2//!
3//! This is a stub implementation. Full DOCX generation requires:
4//! - ZIP file creation for .docx format
5//! - XML generation for document.xml, styles.xml, etc.
6//! - Office Math ML for equations
7//! - Image embedding support
8//!
9//! Consider using libraries like `docx-rs` for production implementation.
10
11use super::{LineData, OcrResult};
12use std::io::Write;
13
14/// DOCX formatter (stub implementation)
15#[allow(dead_code)]
16pub struct DocxFormatter {
17    include_styles: bool,
18    page_size: PageSize,
19    margins: Margins,
20}
21
22#[derive(Debug, Clone, Copy)]
23pub struct PageSize {
24    pub width: u32,  // in twips (1/1440 inch)
25    pub height: u32,
26}
27
28impl PageSize {
29    pub fn letter() -> Self {
30        Self {
31            width: 12240,  // 8.5 inches
32            height: 15840, // 11 inches
33        }
34    }
35
36    pub fn a4() -> Self {
37        Self {
38            width: 11906,  // 210mm
39            height: 16838, // 297mm
40        }
41    }
42}
43
44#[derive(Debug, Clone, Copy)]
45pub struct Margins {
46    pub top: u32,
47    pub right: u32,
48    pub bottom: u32,
49    pub left: u32,
50}
51
52impl Margins {
53    pub fn normal() -> Self {
54        Self {
55            top: 1440,    // 1 inch
56            right: 1440,
57            bottom: 1440,
58            left: 1440,
59        }
60    }
61}
62
63impl DocxFormatter {
64    pub fn new() -> Self {
65        Self {
66            include_styles: true,
67            page_size: PageSize::letter(),
68            margins: Margins::normal(),
69        }
70    }
71
72    pub fn with_page_size(mut self, page_size: PageSize) -> Self {
73        self.page_size = page_size;
74        self
75    }
76
77    pub fn with_margins(mut self, margins: Margins) -> Self {
78        self.margins = margins;
79        self
80    }
81
82    /// Generate Office Math ML from LaTeX
83    /// This is a simplified placeholder - real implementation needs proper conversion
84    pub fn latex_to_mathml(&self, latex: &str) -> String {
85        // This is a very simplified stub
86        // Real implementation would parse LaTeX and generate proper Office Math ML
87        format!(
88            r#"<m:oMathPara>
89  <m:oMath>
90    <m:r>
91      <m:t>{}</m:t>
92    </m:r>
93  </m:oMath>
94</m:oMathPara>"#,
95            self.escape_xml(latex)
96        )
97    }
98
99    /// Generate document.xml content
100    pub fn generate_document_xml(&self, lines: &[LineData]) -> String {
101        let mut xml = String::from(r#"<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
102<w:document xmlns:w="http://schemas.openxmlformats.org/wordprocessingml/2006/main"
103            xmlns:m="http://schemas.openxmlformats.org/officeDocument/2006/math">
104  <w:body>
105"#);
106
107        for line in lines {
108            xml.push_str(&self.format_line(line));
109        }
110
111        xml.push_str("  </w:body>\n</w:document>");
112        xml
113    }
114
115    fn format_line(&self, line: &LineData) -> String {
116        match line.line_type.as_str() {
117            "text" => self.format_paragraph(&line.text),
118            "math" | "equation" => {
119                let latex = line.latex.as_ref().unwrap_or(&line.text);
120                self.format_math(latex)
121            }
122            "heading" => self.format_heading(&line.text, 1),
123            _ => self.format_paragraph(&line.text),
124        }
125    }
126
127    fn format_paragraph(&self, text: &str) -> String {
128        format!(
129            r#"    <w:p>
130      <w:r>
131        <w:t>{}</w:t>
132      </w:r>
133    </w:p>
134"#,
135            self.escape_xml(text)
136        )
137    }
138
139    fn format_heading(&self, text: &str, level: u32) -> String {
140        format!(
141            r#"    <w:p>
142      <w:pPr>
143        <w:pStyle w:val="Heading{}"/>
144      </w:pPr>
145      <w:r>
146        <w:t>{}</w:t>
147      </w:r>
148    </w:p>
149"#,
150            level,
151            self.escape_xml(text)
152        )
153    }
154
155    fn format_math(&self, latex: &str) -> String {
156        let mathml = self.latex_to_mathml(latex);
157        format!(
158            r#"    <w:p>
159      <w:r>
160        {}
161      </w:r>
162    </w:p>
163"#,
164            mathml
165        )
166    }
167
168    fn escape_xml(&self, text: &str) -> String {
169        text.replace('&', "&amp;")
170            .replace('<', "&lt;")
171            .replace('>', "&gt;")
172            .replace('"', "&quot;")
173            .replace('\'', "&apos;")
174    }
175
176    /// Save DOCX to file (stub - needs ZIP implementation)
177    pub fn save_to_file<W: Write>(
178        &self,
179        _writer: &mut W,
180        _result: &OcrResult,
181    ) -> Result<(), String> {
182        Err("DOCX binary format generation not implemented. Use docx-rs library for full implementation.".to_string())
183    }
184
185    /// Generate styles.xml content
186    pub fn generate_styles_xml(&self) -> String {
187        r#"<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
188<w:styles xmlns:w="http://schemas.openxmlformats.org/wordprocessingml/2006/main">
189  <w:style w:type="paragraph" w:styleId="Normal">
190    <w:name w:val="Normal"/>
191    <w:qFormat/>
192  </w:style>
193  <w:style w:type="paragraph" w:styleId="Heading1">
194    <w:name w:val="Heading 1"/>
195    <w:basedOn w:val="Normal"/>
196    <w:qFormat/>
197    <w:pPr>
198      <w:keepNext/>
199      <w:keepLines/>
200    </w:pPr>
201    <w:rPr>
202      <w:b/>
203      <w:sz w:val="32"/>
204    </w:rPr>
205  </w:style>
206</w:styles>"#.to_string()
207    }
208}
209
210impl Default for DocxFormatter {
211    fn default() -> Self {
212        Self::new()
213    }
214}
215
216#[cfg(test)]
217mod tests {
218    use super::*;
219    use crate::output::BoundingBox;
220
221    #[test]
222    fn test_page_sizes() {
223        let letter = PageSize::letter();
224        assert_eq!(letter.width, 12240);
225
226        let a4 = PageSize::a4();
227        assert!(a4.width < letter.width);
228    }
229
230    #[test]
231    fn test_escape_xml() {
232        let formatter = DocxFormatter::new();
233        let result = formatter.escape_xml("Test <tag> & \"quote\"");
234
235        assert!(result.contains("&lt;"));
236        assert!(result.contains("&gt;"));
237        assert!(result.contains("&amp;"));
238        assert!(result.contains("&quot;"));
239    }
240
241    #[test]
242    fn test_format_paragraph() {
243        let formatter = DocxFormatter::new();
244        let result = formatter.format_paragraph("Hello World");
245
246        assert!(result.contains("<w:p>"));
247        assert!(result.contains("<w:t>Hello World</w:t>"));
248    }
249
250    #[test]
251    fn test_format_heading() {
252        let formatter = DocxFormatter::new();
253        let result = formatter.format_heading("Chapter 1", 1);
254
255        assert!(result.contains("Heading1"));
256        assert!(result.contains("Chapter 1"));
257    }
258
259    #[test]
260    fn test_latex_to_mathml() {
261        let formatter = DocxFormatter::new();
262        let result = formatter.latex_to_mathml("E = mc^2");
263
264        assert!(result.contains("<m:oMath>"));
265        assert!(result.contains("mc^2"));
266    }
267
268    #[test]
269    fn test_generate_document_xml() {
270        let formatter = DocxFormatter::new();
271        let lines = vec![
272            LineData {
273                line_type: "text".to_string(),
274                text: "Hello".to_string(),
275                latex: None,
276                bbox: BoundingBox::new(0.0, 0.0, 100.0, 20.0),
277                confidence: 0.95,
278                words: None,
279            },
280        ];
281
282        let xml = formatter.generate_document_xml(&lines);
283        assert!(xml.contains("<?xml"));
284        assert!(xml.contains("<w:document"));
285        assert!(xml.contains("Hello"));
286    }
287
288    #[test]
289    fn test_generate_styles_xml() {
290        let formatter = DocxFormatter::new();
291        let xml = formatter.generate_styles_xml();
292
293        assert!(xml.contains("<w:styles"));
294        assert!(xml.contains("Normal"));
295        assert!(xml.contains("Heading 1"));
296    }
297}
ruvector_scipix/output/docx.rs

ruvector_scipix/output/
docx.rs
