1 /************************************************************************/
2 /* */
3 /* Centre for Speech Technology Research */
4 /* University of Edinburgh, UK */
5 /* Copyright (c) 1996,1997 */
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19 /* derived from this software without specific prior written */
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30 /* THIS SOFTWARE. */
31 /* */
32 /*************************************************************************/
33 /* */
34 /* Author: Richard Caley (rjc@cstr.ed.ac.uk) */
35 /* -------------------------------------------------------------------- */
36 /* Auxiliary functions related to items. */
37 /* */
38 /*************************************************************************/
39
40 #include "ling_class/EST_item_aux.h"
41 #include "ling_class/EST_Item.h"
42 #include "EST_String.h"
43 #include "EST_error.h"
44
45 #include "../base_class/EST_get_function_template.h"
46
defineGetFunction(EST_Item,f,EST_Val,getVal)47 defineGetFunction(EST_Item, f, EST_Val, getVal)
48 defineGetFunction(EST_Item, f, EST_String, getString)
49 defineGetFunction(EST_Item, f, float, getFloat)
50 defineGetFunction(EST_Item, f, int, getInteger)
51
52 float start(const EST_Item &item)
53 {
54 float v=0;
55 EST_feat_status status=efs_ok;
56 EST_Item * pp;
57
58 v = getFloat(item, "start", -1.0, status);
59
60 if (v<0.0)
61 {
62 if ((pp = item.prev()) != NULL)
63 v = getFloat(*pp, "end", -1.0, status);
64 }
65
66 return v;
67 }
68
mid(const EST_Item & item)69 float mid(const EST_Item &item)
70 {
71 float v = 0;
72 EST_feat_status status=efs_ok;
73
74 v = getFloat(item, "mid", -1.0, status);
75
76 if (v<0.0)
77 v = (start(item)+end(item))/2.0;
78
79 return v;
80 }
81
time(const EST_Item & item)82 float time(const EST_Item &item)
83 {
84
85 float v = 0;
86 EST_feat_status status=efs_ok;
87
88 v = getFloat(item, "time", -1.0, status);
89
90 if (v<0.0)
91 v = mid(item);
92
93 return v;
94 }
95
end(const EST_Item & item)96 float end(const EST_Item &item)
97 {
98 float v=0;
99 EST_feat_status status=efs_ok;
100 EST_Item * nn;
101
102 v = getFloat(item, "end", -1.0, status);
103
104 if (v < 0.0)
105 {
106 if ((nn = item.next()) != NULL)
107 v = getFloat(*nn, "start", -1.0, status);
108 }
109
110 return v;
111 }
112
113