alex/zero-epwing-go
1
Fork 0
Code Releases Activity

Format error messages

Browse Source
This commit is contained in:
Alex Yatskov 2021-01-09 20:49:12 -08:00
parent 41f2d1a280
commit a93f029d43
1 changed files with 17 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
zig.go
View File

@ -34,6 +34,10 @@ func hookCallback(book *C.EB_Book, appendix *C.EB_Appendix, container *C.void, h
return C.EB_SUCCESS
}
func formatError(code C.EB_Error_Code) string {
return C.GoString(C.eb_error_string(code))
}
type blockType int
const (
@ -67,7 +71,7 @@ type Context struct {
func (c *Context) initialize() error {
if errEb := C.eb_initialize_library(); errEb != C.EB_SUCCESS {
return fmt.Errorf("eb_initialize_library failed with code %d", errEb)
return fmt.Errorf("eb_initialize_library failed with code: %s", formatError(errEb))
}
c.book = (*C.EB_Book)(C.calloc(1, C.size_t(unsafe.Sizeof(C.EB_Book{}))+8))
@ -104,7 +108,7 @@ func (c *Context) installHooks() error {
for _, hookCode := range hookCodes {
if errEb := C.installHook(c.hookset, hookCode); errEb != C.EB_SUCCESS {
return fmt.Errorf("eb_set_hook failed with code %d", errEb)
return fmt.Errorf("eb_set_hook failed with code: %s", formatError(errEb))
}
}
@ -115,7 +119,7 @@ func (c *Context) loadInternal(path string) (*Book, error) {
pathC := C.CString(path)
defer C.free(unsafe.Pointer(pathC))
if errEb := C.eb_bind(c.book, pathC); errEb != C.EB_SUCCESS {
return nil, fmt.Errorf("eb_bind failed with code %d", errEb)
return nil, fmt.Errorf("eb_bind failed with code: %s", formatError(errEb))
}
var (
@ -141,7 +145,7 @@ func (c *Context) loadInternal(path string) (*Book, error) {
func (c *Context) loadCharCode() (string, error) {
var charCode C.EB_Character_Code
if errEb := C.eb_character_code(c.book, &charCode); errEb != C.EB_SUCCESS {
return "", fmt.Errorf("eb_character_code failed with code %d", errEb)
return "", fmt.Errorf("eb_character_code failed with code: %s", formatError(errEb))
}
switch charCode {
@ -159,7 +163,7 @@ func (c *Context) loadCharCode() (string, error) {
func (c *Context) loadDiscCode() (string, error) {
var discCode C.EB_Disc_Code
if errEb := C.eb_disc_type(c.book, &discCode); errEb != C.EB_SUCCESS {
return "", fmt.Errorf("eb_disc_type failed with code %d", errEb)
return "", fmt.Errorf("eb_disc_type failed with code: %s", formatError(errEb))
}
switch discCode {
@ -179,7 +183,7 @@ func (c *Context) loadSubbooks() ([]BookSubbook, error) {
)
if errEb := C.eb_subbook_list(c.book, &subbookCodes[0], &subbookCount); errEb != C.EB_SUCCESS {
return nil, fmt.Errorf("eb_subbook_list failed with code %d", errEb)
return nil, fmt.Errorf("eb_subbook_list failed with code: %s", formatError(errEb))
}
var subbooks []BookSubbook
@ -197,7 +201,7 @@ func (c *Context) loadSubbooks() ([]BookSubbook, error) {
func (c *Context) loadSubbook(subbookCode C.EB_Subbook_Code) (*BookSubbook, error) {
if errEb := C.eb_set_subbook(c.book, subbookCode); errEb != C.EB_SUCCESS {
return nil, fmt.Errorf("eb_set_subbook failed with code %d", errEb)
return nil, fmt.Errorf("eb_set_subbook failed with code: %s", formatError(errEb))
}
var (
@ -255,7 +259,7 @@ func (c *Context) loadEntries(blocksSeen map[uint32]bool) ([]BookEntry, error) {
)
if errEb := C.eb_hit_list(c.book, (C.int)(len(hits)), &hits[0], &hitCount); errEb != C.EB_SUCCESS {
return nil, fmt.Errorf("eb_hit_list failed with code %d", errEb)
return nil, fmt.Errorf("eb_hit_list failed with code: %s", formatError(errEb))
}
for _, hit := range hits[:hitCount] {
@ -292,7 +296,7 @@ func (c *Context) loadEntries(blocksSeen map[uint32]bool) ([]BookEntry, error) {
func (c *Context) loadTitle() (string, error) {
var data [C.EB_MAX_TITLE_LENGTH + 1]C.char
if errEb := C.eb_subbook_title(c.book, &data[0]); errEb != C.EB_SUCCESS {
return "", fmt.Errorf("eb_subbook_title failed with code %d", errEb)
return "", fmt.Errorf("eb_subbook_title failed with code: %s", formatError(errEb))
}
return c.decoder.String(C.GoString(&data[0]))
@ -305,7 +309,7 @@ func (c *Context) loadCopyright() (string, error) {
var position C.EB_Position
if errEb := C.eb_copyright(c.book, &position); errEb != C.EB_SUCCESS {
return "", fmt.Errorf("eb_copyright failed with code %d", errEb)
return "", fmt.Errorf("eb_copyright failed with code: %s", formatError(errEb))
}
return c.loadContent(position, blockTypeText)
@ -320,17 +324,17 @@ func (c *Context) loadContent(position C.EB_Position, blockType blockType) (stri
)
if errEb := C.eb_seek_text(c.book, &position); errEb != C.EB_SUCCESS {
return "", fmt.Errorf("eb_seek_text failed with code %d", errEb)
return "", fmt.Errorf("eb_seek_text failed with code: %s", formatError(errEb))
}
switch blockType {
case blockTypeHeading:
if errEb := C.eb_read_heading(c.book, nil, c.hookset, nil, dataSize, data, &dataUsed); errEb != C.EB_SUCCESS {
return "", fmt.Errorf("eb_read_heading failed with code %d", errEb)
return "", fmt.Errorf("eb_read_heading failed with code: %s", formatError(errEb))
}
case blockTypeText:
if errEb := C.eb_read_text(c.book, nil, c.hookset, nil, dataSize, data, &dataUsed); errEb != C.EB_SUCCESS {
return "", fmt.Errorf("eb_read_text failed with code %d", errEb)
return "", fmt.Errorf("eb_read_text failed with code: %s", formatError(errEb))
}
default:
panic("invalid block type")