docx_rs/reader/
positional_tab.rs1use std::io::Read;
2use std::str::FromStr;
3
4use crate::{PositionalTabAlignmentType, PositionalTabRelativeTo, TabLeaderType};
5
6use super::*;
7
8fn read_leader(attributes: &[OwnedAttribute]) -> Result<TabLeaderType, ReaderError> {
9 for a in attributes {
10 let local_name = &a.name.local_name;
11 if local_name == "leader" {
12 let v = a.value.to_owned();
13 if let Ok(t) = TabLeaderType::from_str(&v) {
14 return Ok(t);
15 }
16 }
17 }
18 Err(ReaderError::TypeError(crate::TypeError::FromStrError))
19}
20
21fn read_alignment(
22 attributes: &[OwnedAttribute],
23) -> Result<PositionalTabAlignmentType, ReaderError> {
24 for a in attributes {
25 let local_name = &a.name.local_name;
26 if local_name == "alignment" {
27 let v = a.value.to_owned();
28 if let Ok(t) = PositionalTabAlignmentType::from_str(&v) {
29 return Ok(t);
30 }
31 }
32 }
33 Err(ReaderError::TypeError(crate::TypeError::FromStrError))
34}
35
36fn read_relative_to(attributes: &[OwnedAttribute]) -> Result<PositionalTabRelativeTo, ReaderError> {
37 for a in attributes {
38 let local_name = &a.name.local_name;
39 if local_name == "alignment" {
40 let v = a.value.to_owned();
41 if let Ok(t) = PositionalTabRelativeTo::from_str(&v) {
42 return Ok(t);
43 }
44 }
45 }
46 Err(ReaderError::TypeError(crate::TypeError::FromStrError))
47}
48
49impl ElementReader for PositionalTab {
50 fn read<R: Read>(
51 r: &mut EventReader<R>,
52 attrs: &[OwnedAttribute],
53 ) -> Result<Self, ReaderError> {
54 let mut tab = PositionalTab::default();
55 if let Ok(t) = read_alignment(attrs) {
56 tab = tab.alignment(t);
57 }
58 if let Ok(v) = read_relative_to(attrs) {
59 tab = tab.relative_to(v);
60 }
61 if let Ok(leader) = read_leader(attrs) {
62 tab = tab.leader(leader);
63 }
64 loop {
65 let e = r.next();
66 match e {
67 Ok(XmlEvent::EndElement { name, .. }) => {
68 let e = XMLElement::from_str(&name.local_name).unwrap();
69 if e == XMLElement::PTab {
70 return Ok(tab);
71 }
72 }
73 Err(_) => return Err(ReaderError::XMLReadError),
74 _ => {}
75 }
76 }
77 }
78}