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
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
|
/*--------------------------------------------------------------------*//*:Ignore this sentence.
Copyright (C) 1999, 2001 SIL International. All rights reserved.
Distributable under the terms of either the Common Public License or the
GNU Lesser General Public License, as specified in the LICENSING.txt file.
File: PreCompiler.cpp
Responsibility: Sharon Correll
Last reviewed: Not yet.
Description:
Methods to implement the pre-compiler, which does error checking and adjustments.
-------------------------------------------------------------------------------*//*:End Ignore*/
/***********************************************************************************************
Include files
***********************************************************************************************/
#include "main.h"
#ifdef _MSC_VER
#pragma hdrstop
#endif
#undef THIS_FILE
DEFINE_THIS_FILE
/***********************************************************************************************
Features
***********************************************************************************************/
/*----------------------------------------------------------------------------------------------
Do the pre-compilation tasks for the feature definitions. Return false if
compilation cannot continue due to an unrecoverable error.
----------------------------------------------------------------------------------------------*/
bool GrcManager::PreCompileFeatures(GrcFont * pfont)
{
return m_prndr->PreCompileFeatures(this, pfont, &m_fxdFeatVersion);
}
/*--------------------------------------------------------------------------------------------*/
bool GdlRenderer::PreCompileFeatures(GrcManager * pcman, GrcFont * /*pfont*/, uint32_t * pfxdFeatVersion)
{
*pfxdFeatVersion = 0x00010000;
int nInternalID = 0;
std::set<unsigned int> setID;
for (size_t ipfeat = 0; ipfeat < m_vpfeat.size(); ipfeat++)
{
GdlFeatureDefn * pfeat = m_vpfeat[ipfeat];
std::vector<unsigned int> vnIDs;
pfeat->AltIDs(vnIDs);
for (size_t iID = 0; iID < vnIDs.size(); iID++)
{
unsigned int nID = vnIDs[iID];
if (setID.find(nID) != setID.end()) // is a member
{
auto stnID = nID > 0x00FFFFFF
? '\'' +std::string{char(nID >> 24), char(nID >> 16), char(nID >> 8), char(nID)} + '\''
: std::to_string(nID);
g_errorList.AddError(3152, pfeat, "Duplicate feature ID: ", stnID);
}
else
setID.insert(nID);
if (nID > 0x0000FFFF)
*pfxdFeatVersion = 0x00020000;
}
if (pfeat->ErrorCheck())
{
pfeat->SortFeatIDs();
pfeat->SortFeatSettings();
pfeat->SetStdStyleFlag();
pfeat->FillInBoolean(pcman->SymbolTable());
pfeat->ErrorCheckContd();
pfeat->CalculateDefault();
pfeat->AssignInternalID(nInternalID);
pfeat->RecordDebugInfo();
nInternalID += int(vnIDs.size()); // each alternate ID has its own internal ID
}
}
if (m_vpfeat.size() > kMaxFeatures)
{
g_errorList.AddError(3153, NULL,
"Number of features (",
std::to_string(m_vpfeat.size()),
") exceeds maximum of ",
std::to_string(kMaxFeatures));
}
return true;
}
/***********************************************************************************************
Languages
***********************************************************************************************/
/*----------------------------------------------------------------------------------------------
Do the pre-compilation tasks for the language-to-feature mappings. Return false if
compilation cannot continue due to an unrecoverable error.
----------------------------------------------------------------------------------------------*/
bool GrcManager::PreCompileLanguages(GrcFont * /*pfont*/)
{
for (size_t ilcls = 0; ilcls < m_vplcls.size(); ilcls++)
m_vplcls[ilcls]->PreCompile(this);
m_prndr->CheckLanguageFeatureSize();
return true;
}
/*--------------------------------------------------------------------------------------------*/
bool GdlLangClass::PreCompile(GrcManager * pcman)
{
// Each item in the vectors corresponds to a feature assignment.
for (size_t ifasgn = 0; ifasgn < m_vstaFeat.size(); ifasgn++)
{
Symbol psymFeat = pcman->SymbolTable()->FindSymbol(m_vstaFeat[ifasgn]);
if (!psymFeat || psymFeat->SymType() == ksymtInvalid)
{
g_errorList.AddError(3154, NULL, "Undefined feature: ", m_vstaFeat[ifasgn], m_vlnf[ifasgn]);
continue;
}
GdlFeatureDefn * pfeat = psymFeat->FeatureDefnData();
Assert(pfeat);
std::string staValue = m_vstaVal[ifasgn];
GdlExpression * pexpVal = m_vpexpVal[ifasgn];
int nVal;
GdlFeatureSetting * pfset;
if (pexpVal)
{
if (!pexpVal->ResolveToInteger(&nVal, false))
{
g_errorList.AddError(3155, pexpVal,
"Feature value cannot be evaluated", m_vlnf[ifasgn]);
continue;
}
else
{
pfset = pfeat->FindSettingWithValue(nVal);
if (!pfset)
{
g_errorList.AddWarning(3523, NULL,
"Feature ", pfeat->Name(),
" has no defined setting corresponding to value ",
std::to_string(nVal),
m_vlnf[ifasgn]);
}
}
}
else
{
// Feature setting identifier
pfset = pfeat->FindSetting(staValue);
if (!pfset)
{
g_errorList.AddError(3156, NULL, "Undefined feature setting: ", staValue, m_vlnf[ifasgn]);
continue;
}
nVal = pfset->Value();
}
// Store the feature values in the language items.
for (size_t ilang = 0; ilang < m_vplang.size(); ilang++)
m_vplang[ilang]->AddFeatureValue(pfeat, pfset, nVal, m_vlnf[ifasgn]);
if (m_vplang.size() == 0 && ifasgn == 0)
{
g_errorList.AddWarning(3524, NULL, "No languages specified for language group '", m_staLabel,
"'; settings will have no effect",
m_vlnf[0]);
}
}
return true;
}
/*----------------------------------------------------------------------------------------------
Determine if there are enough languages and features to overflow the Sill table.
Actually what would happen is that the offsets would overflow the 16 bits allotted for them.
----------------------------------------------------------------------------------------------*/
void GdlRenderer::CheckLanguageFeatureSize()
{
// 12 = table info, + 8 bytes per language
size_t cbSillSize = 12 + (m_vplang.size() * 8);
cbSillSize += 8; // bogus entry
for (auto const plang: m_vplang)
cbSillSize += plang->NumberOfSettings() * 4; // 4 bytes per feature setting
if (cbSillSize >= 0x0000FFFF)
{
g_errorList.AddError(3157, NULL,
"Too many language-feature assignments to fit in Sill table");
}
}
|
