umya-spreadsheet 3.0.0

umya-spreadsheet is a library written in pure Rust to read and write xlsx file.
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

// sst
use std::{
    collections::HashMap,
    io::Cursor,
};

use quick_xml::{
    Reader,
    Writer,
    events::{
        BytesStart,
        Event,
    },
};

use super::{
    CellValue,
    SharedStringItem,
};
use crate::{
    helper::const_str::SHEET_MAIN_NS,
    reader::driver::xml_read_loop,
    writer::driver::{
        write_end_tag,
        write_start_tag,
    },
};

#[derive(Clone, Default, Debug)]
pub(crate) struct SharedStringTable {
    shared_string_item: Vec<SharedStringItem>,
    map:                HashMap<u64, usize>,
    regist_count:       usize,
}

impl SharedStringTable {
    #[inline]
    pub(crate) fn shared_string_item(&self) -> &[SharedStringItem] {
        &self.shared_string_item
    }

    #[inline]
    #[deprecated(since = "3.0.0", note = "Use shared_string_item()")]
    pub(crate) fn get_shared_string_item(&self) -> &[SharedStringItem] {
        self.shared_string_item()
    }

    #[inline]
    #[allow(dead_code)]
    pub(crate) fn shared_string_item_mut(&mut self) -> &mut Vec<SharedStringItem> {
        &mut self.shared_string_item
    }

    #[inline]
    #[allow(dead_code)]
    #[deprecated(since = "3.0.0", note = "Use shared_string_item_mut()")]
    pub(crate) fn get_shared_string_item_mut(&mut self) -> &mut Vec<SharedStringItem> {
        self.shared_string_item_mut()
    }

    #[inline]
    pub(crate) fn set_shared_string_item(&mut self, value: SharedStringItem) -> &mut Self {
        self.shared_string_item.push(value);
        self
    }

    #[inline]
    pub(crate) fn has_value(&self) -> bool {
        !self.shared_string_item.is_empty()
    }

    pub(crate) fn set_cell(&mut self, value: &CellValue) -> usize {
        self.regist_count += 1;

        let mut shared_string_item = SharedStringItem::default();

        if let Some(v) = value.text() {
            shared_string_item.set_text(v);
        }
        if let Some(v) = value.rich_text() {
            shared_string_item.set_rich_text(v);
        }

        let hash_code = shared_string_item.hash_u64();
        let n = if let Some(v) = self.map.get(&hash_code) {
            *v
        } else {
            let n = self.shared_string_item.len();
            self.map.insert(hash_code, n);
            self.set_shared_string_item(shared_string_item);
            n
        };
        n
    }

    pub(crate) fn set_attributes<R: std::io::BufRead>(
        &mut self,
        reader: &mut Reader<R>,
        _e: &BytesStart,
    ) {
        let mut n: usize = 0;
        xml_read_loop!(
            reader,
            Event::Start(ref e) => {
                if e.name().into_inner() == b"si" {
                    let mut shared_string_item = SharedStringItem::default();
                    shared_string_item.set_attributes(reader, e);

                    let hash_code = shared_string_item.hash_u64();
                    self.map.insert(hash_code, n);
                    self.set_shared_string_item(shared_string_item);

                    n += 1;
                }
            },
            Event::End(ref e) => {
                if e.name().into_inner() == b"sst" {
                    return
                }
            },
            Event::Eof => panic!("Error: Could not find {} end element", "sst")
        );
    }

    pub(crate) fn write_to(&self, writer: &mut Writer<Cursor<Vec<u8>>>) {
        // sst
        write_start_tag(
            writer,
            "sst",
            vec![
                ("xmlns", SHEET_MAIN_NS).into(),
                ("count", self.regist_count.to_string()).into(),
                (
                    "uniqueCount",
                    &self.shared_string_item.len().to_string(),
                )
                    .into(),
            ],
            false,
        );

        // si
        for obj in &self.shared_string_item {
            obj.write_to(writer);
        }

        write_end_tag(writer, "sst");
    }
}