Adding upstream version 2.1.0.upstream/2.1.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

4 files changed, 196 insertions, 0 deletions

diff --git a/markdown_it/helpers/__init__.py b/markdown_it/helpers/__init__.py
new file mode 100644
index 0000000..3dbbdd1
--- /dev/null
+++ b/markdown_it/helpers/__init__.py
@@ -0,0 +1,6 @@
+"""Functions for parsing Links
+"""
+__all__ = ("parseLinkLabel", "parseLinkDestination", "parseLinkTitle")
+from .parse_link_destination import parseLinkDestination
+from .parse_link_label import parseLinkLabel
+from .parse_link_title import parseLinkTitle
diff --git a/markdown_it/helpers/parse_link_destination.py b/markdown_it/helpers/parse_link_destination.py
new file mode 100644
index 0000000..58b76f3
--- /dev/null
+++ b/markdown_it/helpers/parse_link_destination.py
@@ -0,0 +1,86 @@
+"""
+Parse link destination
+"""
+
+from ..common.utils import charCodeAt, unescapeAll
+
+
+class _Result:
+    __slots__ = ("ok", "pos", "lines", "str")
+
+    def __init__(self):
+        self.ok = False
+        self.pos = 0
+        self.lines = 0
+        self.str = ""
+
+
+def parseLinkDestination(string: str, pos: int, maximum: int) -> _Result:
+    lines = 0
+    start = pos
+    result = _Result()
+
+    if charCodeAt(string, pos) == 0x3C:  # /* < */
+        pos += 1
+        while pos < maximum:
+            code = charCodeAt(string, pos)
+            if code == 0x0A:  # /* \n */)
+                return result
+            if code == 0x3C:  # / * < * /
+                return result
+            if code == 0x3E:  # /* > */) {
+                result.pos = pos + 1
+                result.str = unescapeAll(string[start + 1 : pos])
+                result.ok = True
+                return result
+
+            if code == 0x5C and pos + 1 < maximum:  # \
+                pos += 2
+                continue
+
+            pos += 1
+
+        # no closing '>'
+        return result
+
+    # this should be ... } else { ... branch
+
+    level = 0
+    while pos < maximum:
+        code = charCodeAt(string, pos)
+
+        if code == 0x20:
+            break
+
+        # ascii control characters
+        if code < 0x20 or code == 0x7F:
+            break
+
+        if code == 0x5C and pos + 1 < maximum:
+            if charCodeAt(string, pos + 1) == 0x20:
+                break
+            pos += 2
+            continue
+
+        if code == 0x28:  # /* ( */)
+            level += 1
+            if level > 32:
+                return result
+
+        if code == 0x29:  # /* ) */)
+            if level == 0:
+                break
+            level -= 1
+
+        pos += 1
+
+    if start == pos:
+        return result
+    if level != 0:
+        return result
+
+    result.str = unescapeAll(string[start:pos])
+    result.lines = lines
+    result.pos = pos
+    result.ok = True
+    return result
diff --git a/markdown_it/helpers/parse_link_label.py b/markdown_it/helpers/parse_link_label.py
new file mode 100644
index 0000000..20e3c14
--- /dev/null
+++ b/markdown_it/helpers/parse_link_label.py
@@ -0,0 +1,44 @@
+"""
+Parse link label
+
+this function assumes that first character ("[") already matches
+returns the end of the label
+
+"""
+from markdown_it.rules_inline import StateInline
+
+
+def parseLinkLabel(state: StateInline, start: int, disableNested: bool = False) -> int:
+
+    labelEnd = -1
+    oldPos = state.pos
+    found = False
+
+    state.pos = start + 1
+    level = 1
+
+    while state.pos < state.posMax:
+        marker = state.srcCharCode[state.pos]
+        if marker == 0x5D:  # /* ] */)
+            level -= 1
+            if level == 0:
+                found = True
+                break
+
+        prevPos = state.pos
+        state.md.inline.skipToken(state)
+        if marker == 0x5B:  # /* [ */)
+            if prevPos == state.pos - 1:
+                # increase level if we find text `[`,
+                # which is not a part of any token
+                level += 1
+            elif disableNested:
+                state.pos = oldPos
+                return -1
+    if found:
+        labelEnd = state.pos
+
+    # restore old state
+    state.pos = oldPos
+
+    return labelEnd
diff --git a/markdown_it/helpers/parse_link_title.py b/markdown_it/helpers/parse_link_title.py
new file mode 100644
index 0000000..842c83b
--- /dev/null
+++ b/markdown_it/helpers/parse_link_title.py
@@ -0,0 +1,60 @@
+"""Parse link title
+"""
+from ..common.utils import charCodeAt, unescapeAll
+
+
+class _Result:
+    __slots__ = ("ok", "pos", "lines", "str")
+
+    def __init__(self):
+        self.ok = False
+        self.pos = 0
+        self.lines = 0
+        self.str = ""
+
+    def __str__(self):
+        return self.str
+
+
+def parseLinkTitle(string: str, pos: int, maximum: int) -> _Result:
+    lines = 0
+    start = pos
+    result = _Result()
+
+    if pos >= maximum:
+        return result
+
+    marker = charCodeAt(string, pos)
+
+    # /* " */  /* ' */  /* ( */
+    if marker != 0x22 and marker != 0x27 and marker != 0x28:
+        return result
+
+    pos += 1
+
+    # if opening marker is "(", switch it to closing marker ")"
+    if marker == 0x28:
+        marker = 0x29
+
+    while pos < maximum:
+        code = charCodeAt(string, pos)
+        if code == marker:
+            title = string[start + 1 : pos]
+            title = unescapeAll(title)
+            result.pos = pos + 1
+            result.lines = lines
+            result.str = title
+            result.ok = True
+            return result
+        elif code == 0x28 and marker == 0x29:  # /* ( */  /* ) */
+            return result
+        elif code == 0x0A:
+            lines += 1
+        elif code == 0x5C and pos + 1 < maximum:  # /* \ */
+            pos += 1
+            if charCodeAt(string, pos) == 0x0A:
+                lines += 1
+
+        pos += 1
+
+    return result