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comparison src/share/vm/utilities/ostream.cpp @ 102:f96100ac3d12

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Merge
author rasbold
date Thu, 03 Apr 2008 06:41:16 -0700
parents 092ea87cc974 c7c777385a15
children d1605aabd0a1 2a1a77d3458f 37f87013dfd8
comparison
equal deleted inserted replaced
83:d3cd40645d0d 102:f96100ac3d12
50 if (ch == '\n') { 50 if (ch == '\n') {
51 _newlines += 1; 51 _newlines += 1;
52 _precount += _position + 1; 52 _precount += _position + 1;
53 _position = 0; 53 _position = 0;
54 } else if (ch == '\t') { 54 } else if (ch == '\t') {
55 _position += 8; 55 int tw = 8 - (_position & 7);
56 _precount -= 7; // invariant: _precount + _position == total count 56 _position += tw;
57 _precount -= tw-1; // invariant: _precount + _position == total count
57 } else { 58 } else {
58 _position += 1; 59 _position += 1;
59 } 60 }
60 } 61 }
61 } 62 }
131 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, true, len); 132 const char* str = do_vsnprintf(buffer, O_BUFLEN, format, argptr, true, len);
132 write(str, len); 133 write(str, len);
133 } 134 }
134 135
135 void outputStream::fill_to(int col) { 136 void outputStream::fill_to(int col) {
136 while (position() < col) sp(); 137 int need_fill = col - position();
138 sp(need_fill);
139 }
140
141 void outputStream::move_to(int col, int slop, int min_space) {
142 if (position() >= col + slop)
143 cr();
144 int need_fill = col - position();
145 if (need_fill < min_space)
146 need_fill = min_space;
147 sp(need_fill);
137 } 148 }
138 149
139 void outputStream::put(char ch) { 150 void outputStream::put(char ch) {
140 assert(ch != 0, "please fix call site"); 151 assert(ch != 0, "please fix call site");
141 char buf[] = { ch, '\0' }; 152 char buf[] = { ch, '\0' };
142 write(buf, 1); 153 write(buf, 1);
143 } 154 }
144 155
145 void outputStream::sp() { 156 #define SP_USE_TABS false
146 this->write(" ", 1); 157
158 void outputStream::sp(int count) {
159 if (count < 0) return;
160 if (SP_USE_TABS && count >= 8) {
161 int target = position() + count;
162 while (count >= 8) {
163 this->write("\t", 1);
164 count -= 8;
165 }
166 count = target - position();
167 }
168 while (count > 0) {
169 int nw = (count > 8) ? 8 : count;
170 this->write(" ", nw);
171 count -= nw;
172 }
147 } 173 }
148 174
149 void outputStream::cr() { 175 void outputStream::cr() {
150 this->write("\n", 1); 176 this->write("\n", 1);
151 } 177 }