hunt.console.formatter.OutputFormatterStyleStack source code

1 /*
2  * hunt-console eases the creation of beautiful and testable command line interfaces.
3  *
4  * Copyright (C) 2018-2019, HuntLabs
5  *
6  * Website: https://www.huntlabs.net
7  *
8  * Licensed under the Apache-2.0 License.
9  *
10  */
11  
12 module hunt.console.formatter.OutputFormatterStyleStack;
13 
14 import hunt.console.error.InvalidArgumentException;
15 import hunt.console.formatter.OutputFormatterStyle;
16 
17 import hunt.collection.ArrayList;
18 import hunt.collection.List;
19 import hunt.console.formatter.DefaultOutputFormatterStyle;
20 import hunt.logging;
21 import std.string;
22 
23 class OutputFormatterStyleStack
24 {
25     List!(OutputFormatterStyle) styles;
26 
27     OutputFormatterStyle emptyStyle;
28 
29     public this()
30     {
31         this(new DefaultOutputFormatterStyle());
32     }
33 
34     public this(OutputFormatterStyle emptyStyle)
35     {
36         this.emptyStyle = emptyStyle;
37         reset();
38     }
39 
40     public void reset()
41     {
42         styles = new ArrayList!(OutputFormatterStyle)();
43     }
44 
45     public void push(OutputFormatterStyle style)
46     {
47         // logDebug("push : ",(cast(DefaultOutputFormatterStyle)style).toHash);
48         styles.add(style);
49     }
50 
51     public OutputFormatterStyle pop()
52     {
53         return pop(null);
54     }
55 
56     public OutputFormatterStyle pop(OutputFormatterStyle style)
57     {
58         // logDebug("styles.size() : ",styles.size());
59         if (styles.size() == 0) {
60             return emptyStyle;
61         }
62 
63         if (style is null) {
64             return styles.removeAt(styles.size() - 1);
65         }
66         // logDebug("pop : ",(cast(DefaultOutputFormatterStyle)style).toHash);
67 
68 
69         OutputFormatterStyle stackedStyle;
70         for (int i = (styles.size() - 1); i >= 0; i--) {
71             stackedStyle = styles.get(i);
72             // logDebug("------",style.apply("").length," -----",stackedStyle.apply("").length," cmp : ",style.apply("") == stackedStyle.apply(""));
73             if (style.apply("").strip == (stackedStyle.apply("").strip)) {
74                 auto substyles = new ArrayList!(OutputFormatterStyle)();
75                 for(int j = 0 ;j < i;j++)
76                 {   
77                     substyles.add(styles.get(j));
78                 }
79                 styles = substyles;
80                 return stackedStyle;
81             }
82         }
83 
84         throw new InvalidArgumentException("Incorrectly nested style tag found.");
85     }
86 
87     public OutputFormatterStyle getCurrent()
88     {
89         if (styles.size() == 0) {
90             return emptyStyle;
91         }
92 
93         return styles.get(styles.size() - 1);
94     }
95 
96     public OutputFormatterStyle getEmptyStyle()
97     {
98         return emptyStyle;
99     }
100 
101     public void setEmptyStyle(OutputFormatterStyle emptyStyle)
102     {
103         this.emptyStyle = emptyStyle;
104     }
105 }