devices/xditview/parse.c

51 #define HorizontalMove(dw, delta)	((dw)->dvi.state->x += (delta))
55 ParseInput(register DviWidget dw)
69 	if (!dw->dvi.state)
70 	    push_env (dw);
72 		switch (DviGetC(dw, &c)) {
79 			push_env(dw);
82 			pop_env(dw);
89 			HorizontalMove(dw, (c-'0')*10 +
90 					   DviGetC(dw,&otherc)-'0');
93 			DviGetC(dw,&c);
98 			(void) PutCharacter (dw, Buffer);
101 			GetWord (dw, Buffer, BUFSIZ);
102 			(void) PutCharacter (dw, Buffer);
106 			while (DviGetC (dw, &c) != EOF
109 				HorizontalMove (dw, PutCharacter (dw, Buffer));
113 			n = GetNumber(dw);
115 			while (DviGetC (dw, &c) == ' ')
119 				HorizontalMove (dw,
120 						PutCharacter (dw, Buffer) + n);
121 				DviGetC (dw, &c);
126 			(void) GetLine(dw, Buffer, BUFSIZ);
127 			if (dw->dvi.display_enable)
128 				ParseDrawFunction(dw, Buffer);
131 			n = GetNumber(dw);
132 			dw->dvi.state->font_size = n;
135 			n = GetNumber(dw);
136 			dw->dvi.state->font_number = n;
139 			k = GetNumber(dw);
140 			HorizontalGoto(dw, k);
143 			k = GetNumber(dw);
144 			HorizontalMove(dw, k);
147 			Word (dw);
150 			n = GetNumber(dw);
151 			VerticalGoto(dw, n);
154 			n = GetNumber(dw);
155 			VerticalMove(dw, n);
160 			(void) GetNumber(dw);
161 			NextPage = dw->dvi.current_page + 1;
162 			RememberPagePosition(dw, NextPage);
163 			FlushCharCache (dw);
166 			n = GetNumber(dw);
167 			PutNumberedCharacter (dw, n);
170 			GetNumber(dw);
171 			GetNumber(dw);
172 			Newline (dw);
173 			HorizontalGoto(dw, 0);
179 			GetLine(dw, NULL, 0);
182 			ParseDeviceControl(dw);
185 			dw->dvi.last_page = dw->dvi.current_page;
186 			FlushCharCache (dw);
187 			return dw->dvi.current_page;
195 push_env(DviWidget dw)
200 	if (dw->dvi.state)
201 		*new_state = *(dw->dvi.state);
208 	new_state->next = dw->dvi.state;
209 	dw->dvi.state = new_state;
213 pop_env(DviWidget dw)
217 	old = dw->dvi.state;
218 	dw->dvi.state = old->next;
223 InitTypesetter (DviWidget dw)
225 	while (dw->dvi.state)
226 		pop_env (dw);
227 	push_env (dw);
228 	FlushCharCache (dw);
234 ParseDrawFunction(DviWidget dw, char *buf)
257 		DrawLine(dw, v[0], v[1]);
260 		DrawCircle(dw, v[0]);
263 		DrawFilledCircle(dw, v[0]);
266 		DrawEllipse(dw, v[0], v[1]);
269 		DrawFilledEllipse(dw, v[0], v[1]);
272 		DrawArc(dw, v[0], v[1], v[2], v[3]);
275 		DrawPolygon(dw, v, i);
278 		DrawFilledPolygon(dw, v, i);
281 		DrawSpline(dw, v, i);
284 		dw->dvi.line_thickness = v[0];
288 			dw->dvi.fill = v[0];
302 				dw->dvi.state->x += v[0];
307 					dw->dvi.state->y += v[i];
309 					dw->dvi.state->x += v[i];
316 ParseDeviceControl(DviWidget dw)		/* Parse the x commands */
321 	GetWord (dw, str, 20);
324 		GetWord (dw, str, 20);
325 		SetDevice (dw, str);
328 		InitTypesetter (dw);
340 		n = GetNumber (dw);
341 		GetWord (dw, str, 20);
342 		GetLine (dw, str1, 50);
343 		SetFontPosition (dw, n, str, str1);
350 	while (DviGetC (dw, &c) != '\n')	/* skip rest of input line */