devices/xditview/parse.c

53 #define HorizontalMove(dw, delta)	((dw)->dvi.state->x += (delta))
57 ParseInput(register DviWidget dw)
71 	if (!dw->dvi.state)
72 	    push_env (dw);
74 		switch (DviGetC(dw, &c)) {
81 			push_env(dw);
84 			pop_env(dw);
91 			HorizontalMove(dw, (c-'0')*10 +
92 					   DviGetC(dw,&otherc)-'0');
95 			DviGetC(dw,&c);
100 			(void) PutCharacter (dw, Buffer);
103 			GetWord (dw, Buffer, BUFSIZ);
104 			(void) PutCharacter (dw, Buffer);
108 			while (DviGetC (dw, &c) != EOF
111 				HorizontalMove (dw, PutCharacter (dw, Buffer));
115 			n = GetNumber(dw);
117 			while (DviGetC (dw, &c) == ' ')
121 				HorizontalMove (dw,
122 						PutCharacter (dw, Buffer) + n);
123 				DviGetC (dw, &c);
128 			(void) GetLine(dw, Buffer, BUFSIZ);
129 			if (dw->dvi.display_enable)
130 				ParseDrawFunction(dw, Buffer);
133 			n = GetNumber(dw);
134 			dw->dvi.state->font_size = n;
137 			n = GetNumber(dw);
138 			dw->dvi.state->font_number = n;
141 			k = GetNumber(dw);
142 			HorizontalGoto(dw, k);
145 			k = GetNumber(dw);
146 			HorizontalMove(dw, k);
149 			Word (dw);
152 			n = GetNumber(dw);
153 			VerticalGoto(dw, n);
156 			n = GetNumber(dw);
157 			VerticalMove(dw, n);
162 			(void) GetNumber(dw);
163 			NextPage = dw->dvi.current_page + 1;
164 			RememberPagePosition(dw, NextPage);
165 			FlushCharCache (dw);
168 			n = GetNumber(dw);
169 			PutNumberedCharacter (dw, n);
172 			GetNumber(dw);
173 			GetNumber(dw);
174 			Newline (dw);
175 			HorizontalGoto(dw, 0);
181 			GetLine(dw, NULL, 0);
184 			ParseDeviceControl(dw);
187 			dw->dvi.last_page = dw->dvi.current_page;
188 			FlushCharCache (dw);
189 			return dw->dvi.current_page;
197 push_env(DviWidget dw)
202 	if (dw->dvi.state)
203 		*new_state = *(dw->dvi.state);
210 	new_state->next = dw->dvi.state;
211 	dw->dvi.state = new_state;
215 pop_env(DviWidget dw)
219 	old = dw->dvi.state;
220 	dw->dvi.state = old->next;
225 InitTypesetter (DviWidget dw)
227 	while (dw->dvi.state)
228 		pop_env (dw);
229 	push_env (dw);
230 	FlushCharCache (dw);
236 ParseDrawFunction(DviWidget dw, char *buf)
259 		DrawLine(dw, v[0], v[1]);
262 		DrawCircle(dw, v[0]);
265 		DrawFilledCircle(dw, v[0]);
268 		DrawEllipse(dw, v[0], v[1]);
271 		DrawFilledEllipse(dw, v[0], v[1]);
274 		DrawArc(dw, v[0], v[1], v[2], v[3]);
277 		DrawPolygon(dw, v, i);
280 		DrawFilledPolygon(dw, v, i);
283 		DrawSpline(dw, v, i);
286 		dw->dvi.line_thickness = v[0];
290 			dw->dvi.fill = v[0];
304 				dw->dvi.state->x += v[0];
309 					dw->dvi.state->y += v[i];
311 					dw->dvi.state->x += v[i];
318 ParseDeviceControl(DviWidget dw)		/* Parse the x commands */
323 	GetWord (dw, str, 20);
326 		GetWord (dw, str, 20);
327 		SetDevice (dw, str);
330 		InitTypesetter (dw);
342 		n = GetNumber (dw);
343 		GetWord (dw, str, 20);
344 		GetLine (dw, str1, 50);
345 		SetFontPosition (dw, n, str, str1);
352 	while (DviGetC (dw, &c) != '\n')	/* skip rest of input line */