agxbuf.h File Reference

#include <assert.h>
#include <limits.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <util/alloc.h>
#include <util/unused.h>

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Data Structures
struct	agxbuf

Macros
#define	PRINTF_LIKE(index, first)   /* nothing */

Enumerations
enum	agxbuf_loc_t { AGXBUF_INLINE_SIZE_0 = 0 , AGXBUF_ON_HEAP = 255 }
	a description of where a buffer is located More...

Functions
static bool	agxbuf_is_inline (const agxbuf *xb)
static void	agxbfree (agxbuf *xb)
	free any malloced resources
static char *	agxbstart (agxbuf *xb)
	return pointer to beginning of buffer
static size_t	agxblen (const agxbuf *xb)
	return number of characters currently stored
static size_t	agxbsizeof (const agxbuf *xb)
static int	agxbpop (agxbuf *xb)
	removes last character added, if any
static void	agxbmore (agxbuf *xb, size_t ssz)
	expand buffer to hold at least ssz more bytes
static char *	agxbnext (agxbuf *xb)
	next position for writing
static int	vagxbprint (agxbuf *xb, const char *fmt, va_list ap)
	vprintf-style output to an agxbuf
static int	agxbprint (agxbuf *xb, const char *fmt,...)
	Printf-style output to an agxbuf.
static size_t	agxbput_n (agxbuf *xb, const char *s, size_t ssz)
	append string s of length ssz into xb
static size_t	agxbput (agxbuf *xb, const char *s)
	append string s into xb
static int	agxbputc (agxbuf *xb, char c)
	add character to buffer
static void	agxbclear (agxbuf *xb)
	resets pointer to data
static WUR char *	agxbuse (agxbuf *xb)
static char *	agxbdisown (agxbuf *xb)
static void	agxbuf_trim_zeros (agxbuf *xb)

Macro Definition Documentation

PRINTF_LIKE

#define PRINTF_LIKE	(		index,
			first
	)		/* nothing */

Definition at line 228 of file agxbuf.h.

Enumeration Type Documentation

agxbuf_loc_t

enum agxbuf_loc_t

Enumerator
AGXBUF_INLINE_SIZE_0
AGXBUF_ON_HEAP	buffer is dynamically allocated

Definition at line 29 of file agxbuf.h.

Function Documentation

agxbclear()

static void agxbclear ( agxbuf *  xb )

inlinestatic

Definition at line 292 of file agxbuf.h.

References AGXBUF_INLINE_SIZE_0, agxbuf_is_inline(), agxbuf::located, and agxbuf::size.

Referenced by addEdgeGraphics(), addEdgeGraphics(), addEdgeLabelGraphics(), addEdgeLabelGraphics(), addNodeGraphics(), addNodeGraphics(), addNodeLabelGraphics(), addNodeLabelGraphics(), agerr_va(), agxbuse(), extoken_fn(), and pango_textlayout().

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agxbdisown()

static char * agxbdisown ( agxbuf *  xb )

inlinestatic

Definition at line 325 of file agxbuf.h.

References agxblen(), agxbputc(), agxbuf_is_inline(), agxbuf::buf, gv_strndup(), and agxbuf::store.

Referenced by aglasterr(), appendFItemList(), appendFItemList(), buildBindings(), compile(), concat(), endstr(), endstr(), fmtquote(), gdk_set_mimedata_from_file(), getName(), getName(), gv_get_font(), gv_postprocess(), gvconfig(), gvpr_select(), htmlEntityUTF8(), latin1ToUTF8(), lexname(), make_simple_label(), pango_psfontResolve(), parseBracket(), parseString(), pov_color_as_str(), ps_string(), renderresult(), sprintXDot(), strdup_and_subst_obj0(), and utf8ToLatin1().

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agxbfree()

static void agxbfree ( agxbuf *  xb )

inlinestatic

Definition at line 77 of file agxbuf.h.

References AGXBUF_ON_HEAP, agxbuf::buf, free(), and agxbuf::located.

Referenced by aagerror(), agconcat(), attach_attrs_and_arrows(), attach_edge_colors(), bboxPDF(), cairogen_begin_anchor(), cccomps(), ccomps(), clearHTMLlexer(), clone_graph(), cloneNode(), colorx(), colorxlate(), colorxlate(), concat(), concat(), concatPort(), concatPort(), createEdgeId(), createGraphId(), createNodeId(), createOneBlock(), deref(), Dot_SetClusterColor(), emit_begin_edge(), emit_edge(), emit_edge_graphics(), emit_edge_label(), emit_page(), expandPercentsEval(), exsub(), fig_bezier(), findCComp(), gdk_format(), get_font_mapping(), get_metrics_for_font_family(), getval(), global_def(), gml_to_gv(), gml_to_gv(), graph_init(), gvloadimage(), gvloadimage_process_surface(), gvplugin_graph(), gvplugin_library_load(), gvplugin_load(), gvprintf(), gvprintpointf(), gvrender_resolve_color(), initAnchor(), initObjMapData(), jsonXDot_Op(), lookup(), main(), make_html_label(), make_simple_label(), makeBlockGraph(), makeDotGraph(), mkBlock(), mkBlock(), mkStmts(), on_gvprbuttonload_clicked(), pango_textlayout(), parseCase(), parseHTML(), parseString(), pccomps(), plot_dot_map(), plot_dot_polygons(), pov_bezier(), pov_color_as_str(), pov_ellipse(), pov_textspan(), printdouble(), printFloat(), printint(), printPolyline(), printRect(), printXDot_Op(), process(), processClusterEdges(), processClusters(), put_escaping_backslashes(), readLine(), rec_attach_bb(), refval(), resolve(), resolveColor(), run_gvpr(), setcolor(), setval(), spanning_tree(), stringOf(), svg_size(), traverse(), vgpane(), writeHdr(), xdot_end_graph(), xdot_gradient_fillcolor(), and xdot_style().

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agxblen()

static size_t agxblen ( const agxbuf *  xb )

inlinestatic

Definition at line 88 of file agxbuf.h.

References AGXBUF_INLINE_SIZE_0, agxbuf_is_inline(), agxbuf::located, and agxbuf::size.

Referenced by aagerror(), addEdgePoint(), addEdgePoint(), agxbdisown(), agxbmore(), agxbnext(), agxbpop(), agxbput_n(), agxbputc(), agxbuf_trim_zeros(), agxbuse(), beginstr(), beginstr(), beginstr(), dgsprintxy(), htmllex(), make_simple_label(), parse_style(), renderresult(), vagxbprint(), xdot_end_edge(), xdot_end_graph(), and xdot_end_node().

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agxbmore()

static void agxbmore ( agxbuf *  xb, size_t  ssz  )

inlinestatic

Definition at line 130 of file agxbuf.h.

References agxblen(), agxbsizeof(), AGXBUF_ON_HEAP, agxbuf::buf, agxbuf::capacity, cnt(), gv_calloc(), gv_recalloc(), agxbuf::located, agxbuf::size, and agxbuf::store.

Referenced by agxbput_n(), agxbputc(), and vagxbprint().

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agxbnext()

static char * agxbnext ( agxbuf *  xb )

inlinestatic

Definition at line 155 of file agxbuf.h.

References agxblen(), agxbuf_is_inline(), agxbuf::buf, len(), and agxbuf::store.

Referenced by vagxbprint().

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agxbpop()

static int agxbpop ( agxbuf *  xb )

inlinestatic

Definition at line 110 of file agxbuf.h.

References agxblen(), AGXBUF_INLINE_SIZE_0, agxbuf_is_inline(), agxbuf::buf, len(), agxbuf::located, agxbuf::size, and agxbuf::store.

Referenced by attach_attrs_and_arrows(), and xdot_gradient_fillcolor().

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agxbprint()

static int agxbprint ( agxbuf *  xb, const char *  fmt,   ...  )

inlinestatic

Definition at line 232 of file agxbuf.h.

References vagxbprint().

Referenced by aagerror(), addEdgeLabelGraphics(), addEdgeLabelGraphics(), addEdgePoint(), addEdgePoint(), addNodeGraphics(), addNodeGraphics(), attach_attrs_and_arrows(), auto_output_filename(), blockName(), buildBindings(), cairogen_begin_anchor(), cccomps(), ccomps(), chkGraphName(), clone_graph(), cloneNode(), clustNode(), color_string(), colorx(), colorxlate(), compile(), concat(), concat(), concat(), concatPort(), concatPort(), createEdgeId(), createGraphId(), createNodeId(), createOneBlock(), default_pencolor(), deparseAttr(), deparseAttr(), dgsprintxy(), emit_edge_label(), exdump(), expandPercentsEval(), fig_bezier(), findCComp(), findPath(), fullColor(), gdk_format(), gdk_set_mimedata_from_file(), gen(), get_avail_faces(), get_metrics_for_font_family(), getName(), getName(), getObjId(), graph_init(), gv_get_font(), gv_postprocess(), gvconfig(), gvloadimage(), gvloadimage_process_surface(), gvplugin_graph(), gvplugin_library_load(), gvplugin_list(), gvplugin_load(), gvpr_select(), gvrender_resolve_color(), hue2rgb(), initAnchor(), layerPagePrefix(), lexname(), LIST(), makeBlockGraph(), makeDotGraph(), mkBlock(), mkStmts(), nameOf(), pango_psfontResolve(), pango_textlayout(), pccomps(), pov_bezier(), pov_color_as_str(), pov_ellipse(), pov_textspan(), print(), printdouble(), printFloat(), printint(), printPolyline(), printRect(), process(), processClusters(), rec_attach_bb(), resolve(), rgb2hex(), run_gvpr(), scan(), scanEntity(), set_record_rects(), spanning_tree(), sprintXDot(), strdup_and_subst_obj0(), toGradString(), traverse(), vgpane(), writeHdr(), xdot_color_stop(), xdot_fmt_num(), xdot_points(), xdot_str_color_xbuf(), xdot_str_xbuf(), xdot_style(), and xdot_textspan().

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agxbput()

static size_t agxbput ( agxbuf *  xb, const char *  s  )

inlinestatic

Definition at line 268 of file agxbuf.h.

References agxbput_n().

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agxbput_n()

static size_t agxbput_n ( agxbuf *  xb, const char *  s, size_t  ssz  )

inlinestatic

Definition at line 248 of file agxbuf.h.

References agxblen(), agxbmore(), agxbsizeof(), agxbuf_is_inline(), agxbuf::buf, len(), agxbuf::located, agxbuf::size, and agxbuf::store.

Referenced by agxbput(), expandPercentsEval(), exsub(), global_def(), gv_string_writer(), parse_style(), replace(), resolve(), rgb2hex(), and storeFileName().

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agxbputc()

static int agxbputc ( agxbuf *  xb, char  c  )

inlinestatic

Definition at line 275 of file agxbuf.h.

References agxblen(), agxbmore(), agxbsizeof(), agxbuf_is_inline(), agxbuf::buf, len(), agxbuf::located, agxbuf::size, and agxbuf::store.

Referenced by aagerror(), addEdgeGraphics(), addEdgeGraphics(), addEdgeLabelGraphics(), addEdgeLabelGraphics(), addEdgePoint(), addEdgePoint(), addNodeGraphics(), addNodeGraphics(), addNodeLabelGraphics(), addNodeLabelGraphics(), agxbdisown(), agxbuse(), attach_attrs_and_arrows(), auto_output_filename(), canoncolor(), colorxlate(), colorxlate(), copyUpper(), cvtAndAppend(), deparseList(), deparseList(), dgsprintxy(), endBracket(), endString(), exdump(), expandPercentsEval(), extoken_fn(), gen(), getNum(), gv_get_font(), htmlEntityUTF8(), latin1ToUTF8(), make_simple_label(), nameOf(), parse_style(), parseString(), print(), ps_string(), put_escaping_backslashes(), readc(), readLine(), replace(), scan(), scanEntity(), strdup_and_subst_obj0(), svg_size(), toGradString(), utf8ToLatin1(), xdot_color_stop(), xdot_fmt_num(), xdot_gradient_fillcolor(), and xdot_style().

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agxbsizeof()

static size_t agxbsizeof ( const agxbuf *  xb )

inlinestatic

get the capacity of the backing memory of a buffer

In contrast to agxblen, this is the total number of usable bytes in the backing store, not the total number of currently stored bytes.

Parameters

xb	Buffer to operate on

Returns

Number of usable bytes in the backing store

Definition at line 102 of file agxbuf.h.

References agxbuf_is_inline(), agxbuf::capacity, and agxbuf::store.

Referenced by agxbmore(), agxbput_n(), agxbputc(), and vagxbprint().

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agxbstart()

static char * agxbstart ( agxbuf *  xb )

inlinestatic

Definition at line 83 of file agxbuf.h.

References agxbuf_is_inline(), agxbuf::buf, and agxbuf::store.

Referenced by agxbuf_trim_zeros(), and agxbuse().

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agxbuf_is_inline()

static bool agxbuf_is_inline ( const agxbuf *  xb )

inlinestatic

Definition at line 70 of file agxbuf.h.

References AGXBUF_ON_HEAP, agxbuf::located, and agxbuf::store.

Referenced by agxbclear(), agxbdisown(), agxblen(), agxbnext(), agxbpop(), agxbput_n(), agxbputc(), agxbsizeof(), agxbstart(), agxbuf_trim_zeros(), agxbuse(), and vagxbprint().

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agxbuf_trim_zeros()

static void agxbuf_trim_zeros ( agxbuf *  xb )

inlinestatic

trim extraneous trailing information from a printed floating point value

tl;dr:

• “42.00” → “42”
• “42.01” → “42.01”
• “42.10” → “42.1”
• “-0.0” → “0”

Printing a double or float via, for example, agxbprint("%.02f", 42.003) can result in output like “42.00”. If this data is destined for something that does generalized floating point parsing/decoding (e.g. SVG viewers) the “.00” is unnecessary. “42” would be interpreted identically. This function can be called after such a agxbprint to normalize data.

Parameters

xb	Buffer to operate on

Definition at line 362 of file agxbuf.h.

References agxblen(), agxbstart(), AGXBUF_INLINE_SIZE_0, agxbuf_is_inline(), len(), agxbuf::located, agxbuf::size, and SIZE_MAX.

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agxbuse()

static WUR char * agxbuse ( agxbuf *  xb )

inlinestatic

Definition at line 305 of file agxbuf.h.

References agxbclear(), agxblen(), agxbputc(), agxbstart(), AGXBUF_INLINE_SIZE_0, agxbuf_is_inline(), and agxbuf::store.

Referenced by aagerror(), addEdgeGraphics(), addEdgeGraphics(), addEdgeLabelGraphics(), addEdgeLabelGraphics(), addEdgePos(), addEdgePos(), addNodeGraphics(), addNodeGraphics(), addNodeLabelGraphics(), addNodeLabelGraphics(), attach_attrs_and_arrows(), attach_edge_colors(), auto_output_filename(), blockName(), cairogen_begin_anchor(), cccomps(), ccomps(), chkGraphName(), clone_graph(), cloneNode(), clustNode(), colorx(), colorxlate(), colorxlate(), concat(), concat(), concatPort(), concatPort(), createEdgeId(), createGraphId(), createNodeId(), createOneBlock(), default_pencolor(), deparse(), Dot_SetClusterColor(), emit_edge(), emit_edge_label(), emit_page(), endstr(), endstr_html(), expandPercentsEval(), exsub(), extoken_fn(), fig_bezier(), findCComp(), findPath(), fullColor(), gdk_format(), get_avail_faces(), get_metrics_for_font_family(), getNum(), getObjId(), global_def(), graph_init(), gvloadimage(), gvloadimage_process_surface(), gvplugin_graph(), gvplugin_library_load(), gvplugin_list(), gvplugin_load(), gvprintf(), gvprintpointf(), gvrender_resolve_color(), htmllex(), hue2rgb(), initAnchor(), jsonXDot_Op(), makeBlockGraph(), makeDotGraph(), mkBlock(), mkStmts(), nameOf(), nameOf(), nameOf(), on_gvprbuttonload_clicked(), pango_textlayout(), parse_style(), pccomps(), plot_dot_map(), plot_dot_polygons(), pov_bezier(), pov_color_as_str(), pov_ellipse(), pov_textspan(), printdouble(), printFloat(), printint(), printPolyline(), printRect(), printXDot_Op(), process(), processClusters(), put_escaping_backslashes(), readLine(), rec_attach_bb(), resolve(), run_gvpr(), setcolor(), spanning_tree(), storeFileName(), svg_size(), traverse(), unknown(), unknown(), vgpane(), writeHdr(), xdot_end_cluster(), xdot_end_edge(), xdot_end_graph(), xdot_end_node(), xdot_gradient_fillcolor(), xdot_style(), and yyparse().

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vagxbprint()

static int vagxbprint ( agxbuf *  xb, const char *  fmt, va_list  ap  )

inlinestatic

Definition at line 161 of file agxbuf.h.

References agxblen(), agxbmore(), agxbnext(), agxbsizeof(), agxbuf_is_inline(), agxbuf::located, NULL, agxbuf::size, and agxbuf::store.

Referenced by agerr_va(), agxbprint(), and gvprintf().

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